Physics

Projectile?

Projectile?

1)Three balls are thrown simultaneously at the same speed from a roof. Ball A is thrown vertically upward, Ball B is thrown horizontally, and ball C is thrown vertically downward. Will the balls reach the ground at the same time? If not, calculate th

juby35418193   298   2 Replies

lendwill

How do you solve this projectile problem?

How do you solve this projectile problem?

You are standing at the top of a cliff that has a stairstep configuration. There is a vertical drop of 6m at your feet then a horizontal shelf of 9m then another drop of 4m to the bottom of the canyon which has a horizontal floor. You kick a 0.3kg ro

juby35418193   470   1 Reply

judd

What is a formula for the displacement of a projectile fired uphill withouth using time?

What is a formula for the displacement of a projectile fired uphill withouth using time?

The incline is at angle alpha and the projectile is launched at angle beta at an given unkown intial velocity.  Where will it land on the incline.  I need a formula for this without using time.

judogirl   360   2 Replies

tomsaliba

The belt around two pulleys delivers power from the motor to a machine.Both pulleys have a diameter of 7.5 cm?

The belt around two pulleys delivers power from the motor to a machine.Both pulleys have a diameter of 7.5 cm?

their centres are 30 cm apart , how long is the belt.

So do i find the cirumference for one, times it by 2 and add 30 ? or what ?

thanks

rkearl27   550   1 Reply

bugaian

How can I test an alternator (possibly with a multimeter) and/or any alternator project ideas?

How can I test an alternator (possibly with a multimeter) and/or any alternator project ideas?

I am currently working on a generator project. I am using a motor to turn an alternator to produce electricity. I have hooked the pulley on the motor to the pulley on the alternator with a belt. I am fairly sure the alternator is spinning fast enough

buyhesitestba   754   4 Replies

RJ5876

Does an a/c motor need a capacitor?

Does an a/c motor need a capacitor?

I'm trying to convert a hand crank meat grinder into an electric one. I know that the motor and grinder need to be connected by 2 pulleys and a wheel. The motor I have is 1/3 HP, 3450 rpms and comes from a dishwasher. There is some kind of coil in th

Leona Ariane   511   4 Replies

rkim12

Does it matter what direction the shaft of a generator turns for it to work properly.There are no markings.?

Does it matter what direction the shaft of a generator turns for it to work properly.There are no markings.?

The generator is a 10,000 watt that will be driven by a seperate motor & pulley. I am planning on mounting it & I am not sure if it has to turn in a specific direction.The shaft spins freely in either direction.
It is a 120 volt ac generator. It will

rizzi   630   8 Replies

butwal

6 tons 22 pulleys. How strong of a motor is needed to lift that weight?

6 tons 22 pulleys. How strong of a motor is needed to lift that weight?

6 tons 22 pulleys. How strong of a motor is needed to lift that weight?

rjacinto   619   3 Replies

butternut

Determine the reaction supports of a pulley system on a beam?

Determine the reaction supports of a pulley system on a beam?

If the motor draws in the cable with an acceleration of 3m/s^2, determine the reactions at the supports A and B.The beam has a uniform mass of 30 kg/m, and the crate has a mass of 200 kg. Neglect the mass of the motor and pulleys.

http://i40.tinypic

leo226   1660   N/A

leo226

If I reduce the rpm of an electric motor by using different sized pulleys pulleys will it double the output ho?

If I reduce the rpm of an electric motor by using different sized pulleys pulleys will it double the output ho?

If I reduce the rpm of an electric motor by using different sized pulleys pulleys will it double the output ho?

butternut   836   4 Replies

rjavier1

What is the speed of this saw in feet per a minute?

What is the speed of this saw in feet per a minute?

The motor turns at 3450 rpm, with a 3" pulley attached directly to the motor shaft.
A fan belt is connected from the 3" motor pulley to the 12" diameter step pulley. The largest diameter of the step pulley is 25.25 inches, which the saw blade rides

rkarthik301   342   1 Reply

rkahn

How long would it take to lift a 2 ton car, 1mile up the side of a mountain using a 1 watt motor?

How long would it take to lift a 2 ton car, 1mile up the side of a mountain using a 1 watt motor?

The motor runs on a small battery (9V @ 0.11A) and is connected by a system of
 gears and pulleys. Assume no losses.
.
 It shouldn't matter but the slope is infinity.
.

Leo   418   N/A

Leo

When the motor in the figure below raises the m = 1190 kg mass, it produces a tension of 1.41E+4 N?

When the motor in the figure below raises the m = 1190 kg mass, it produces a tension of 1.41E+4 N?

When the motor in the figure below raises the m = 1190 kg mass, it produces a tension of 1.41E+4 N in the cable on the right side of the pulley.

 
The pulley has a moment of inertia of 75.8 kg* m2 and a radius of 0.738 m. The cable rides over the pu

rkdgh2002   416   1 Reply

illestchemist

An electric motor turns a flywheel that is connected to a pulley by a belt.?

An electric motor turns a flywheel that is connected to a pulley by a belt.?

The flywheel is a solid disk with a mass of 80 kg and a diameter of 1.25 m . The setup is frictionless.  It's pulley has a mass of 1 kg and a radius of .23 m . The tension on upper taut segment of the belt is 135 N. The flywheel has a clockwise angul

ilikepie1234   981   1 Reply

illicitf8

Where can I find an electrical pulley or similar patents?

Where can I find an electrical pulley or similar patents?

Where can I find patents of an electrical pulley that produce electricity through an object's motion?
I'm looking for a device that converts mechanical energy to potential energy and then potential energy to electrical energy?
For example, the device

Rjune1   352   3 Replies

butterpecan

How to get a vertical shaft motor to power the wheels of a go kart?

How to get a vertical shaft motor to power the wheels of a go kart?

How would I get the motor to power the wheels? I don't have a whole lot of money to spin. Also where would I find the parts to do this. I don't want to hear how you don't think its going to work. I've heard you can use a tooth pulley or a v pulley wh

ilindsey05   375   5 Replies

Leon.g

Help please (test tomorrow) deals with linear motion?

Help please (test tomorrow) deals with linear motion?

A ball rolls off the edge of a table with an initial velocity of 20 m/s. The height of the table above the ground is 2.0m How long does it take the ball reach the ground?

A ball rolls off a table with an initial velocity of 12.0m/s The hieght of the

rk90   371   1 Reply

Leobgood

The figure below shows nine graphs of position, velocity, and acceleration for objects in linear motion.?

The figure below shows nine graphs of position, velocity, and acceleration for objects in linear motion.?

here is the link to the picture: http://books.google.com/books?id=Gp2tzUhbqjMC&pg=PA51&lpg=PA51&dq=The+figure+below+shows+nine+graphs+of+position,+velocity,+and+acceleration+for+objects+in+linear+motion.&source=bl&ots=lcgzFZW3vD&sig=2k8l9QLevJ6eViXSq

buyhesitestba   758   1 Reply

rkim12

Physics linear motion problem help?

Physics linear motion problem help?

Suppose you are driving on the interstate at 82 mph when you see a highway patrol car parked up ahead. You apply your brakes, decelerating at a constant rate of 3.6 mph/sec until you have reduced your speed to 65 mph. You then maintain a constant spe

leo749   429   1 Reply

illestchemist

Linear Motion: A stone thrown in the air?

Linear Motion: A stone thrown in the air?

A stone is thrown vertically upwards with an initial speed of vo. At times t and t+2.00s, it has a speed of 0.400 vo. Calculate t. (A:1.50s).

I keep trying to solve for t using the equation v = vo + at, but I get the incorrect answer. What am I doin

Rjune1   361   1 Reply

Leo

How do you transfer push/pull linear motion into right/left linear motion?

How do you transfer push/pull linear motion into right/left linear motion?

When a verticle lever is pushed forward or pulled backward, the effect is a linear movement to the right or left (perpendicular to the original movement).  This is probably an embarassingly simple mechanism, but not seeing it in motion is baffling me

rizzamella   507   1 Reply

illestchemist

What vehicle demonstrates linear, rotary and reciprocal motion?

What vehicle demonstrates linear, rotary and reciprocal motion?

some thing that i could build

Leo   349   2 Replies

lensley

Please NEED HELP! - Physics WS -- Uniform Linear Motion?

Please NEED HELP! - Physics WS -- Uniform Linear Motion?

Part A. Uniform Linear Motion: Show work and formulas used.

1. A car accerlerates from 10 m/s to 25 m/s in 6.0 s.   What was its acceleration?  How far did it travel in this time

2. A world class sprinter can reach a top speed of about 11.5 m/s in

buggingout16   533   2 Replies

rjedlicka

Angular Motion and Linear Motion?

Angular Motion and Linear Motion?

I'm having trouble trying to distinguish between Angular Motion and Linear Motion and how to switch between them. For example:

You are spinning a rock next to you around with a string of length 51 cm. If you release it so that it goes straight up an

rjones025   524   1 Reply

rjavier1

I don't understand linear motion.?

I don't understand linear motion.?

Ok so there are a bunch of terms in linear motion and I don't understand any of them. I don't know what their symbols are and what they mean... I'm basically screwed because my teacher is no help and we don't have books.
Can anyone help me. Like tell

leo123   298   1 Reply

bug2012

Linear motion with variable forces question?

Linear motion with variable forces question?

A car of mass 1200kg is at rest on a level road. Two people push it, producing a total force given by (240-12t)newtons, where t is the time in seconds, until this becomes ego after 20 seconds. How fast is the car then moving, and how far does it move

rjay92   311   1 Reply

butwal

what are the examples of linear motion?

what are the examples of linear motion?

linear motion good examples

buttrosehead   419   4 Replies

insi

physics linear motion problem?

physics linear motion problem?

A speeder passes a parked police car at 34.9
m/s. Instantaneously, the police car starts
from rest with a uniform acceleration of 2.42
m/s2.

a) How much time pases before the speeder
is overtaken by the police car?

b) How far does the speeder get b

rjandmj82   521   3 Replies

iliketorifk

Momentum in Linear Motion Physics Question - Help please!?

Momentum in Linear Motion Physics Question - Help please!?

A person of mass 85.5 kg is initially at rest on the edge of a large stationary platform of mass 235 kg, supported by frictionless wheels on a horizontal surface. The person jumps off the platform, traveling a horizontal distance of 1.00 m while fall

rkoch   500   N/A

rkoch

I could use some help with linear motion.?

I could use some help with linear motion.?

John drops a cricket bat from the top of a 100m high tower while Jill throws another ball from the ground vertically up at 25ms-1. Find when and where the two balls meet.

-Thanks

Butters401991   392   1 Reply

leobiologo

Any facts or information about linear motion please................!!!!!!!!!?

Any facts or information about linear motion please................!!!!!!!!!?

Any facts or information about linear motion please................!!!!!!!!!?

rja5200   348   1 Reply

rknicker

what does uniformly accelerated linear motion mean?

what does uniformly accelerated linear motion mean?

what does uniformly accelerated linear motion mean?

rjavier1   400   4 Replies

inreverie

confused>>>>physics linear motion?

confused>>>>physics linear motion?

a person is standing on a table holding 2 identical balls. one ball he throws upward and at the same instants he drops  the second ball. will both balls will reach the ground with same final velocity. please give reason. an explanation or proof by nu

ilikebigbutts   720   8 Replies

rizzlepuff8

Rotational Motion/ Linear Velocity?

Rotational Motion/ Linear Velocity?

As a baseball player swings a bat it undergoes rotational motion with the handle as the axis of rotation. What is true about the linear velocity of a point in the middle of the bat compared to the end farthest from the handle?

leo226   667   1 Reply

rjacinto

(LINEAR MOTION) how do you calculate distance?

(LINEAR MOTION) how do you calculate distance?

(LINEAR MOTION) how do you calculate distance?

Rkamu   473   4 Replies

buyhesitestba

A Physics Question About Linear Motion?

A Physics Question About Linear Motion?

Can anyone help me with this problem?'A train starts from rest and accelerates unifromly until it reaches a speed of 18 m/s. It continues at this steady speed and passes the 20 km distance marker after a total time of 26 minutes. Calculate the time d

bug2012   410   1 Reply

rja5200

Conceptual physics linear motion?

Conceptual physics linear motion?

Directions: Show yoour work: This includes given information, unknoen, equation, and solution. Be Sure to use symbols, not words.  Round any answer with decimals to one decimal place.

Question: How fast (in kilometers per hour) was a plane flying  i

buturusca   569   1 Reply

buyhesitestba

what are the similarities between circular motion and linear motion ?

what are the similarities between circular motion and linear motion ?

similarities not differences please

leo226   558   2 Replies

bugaian

What is the difference between centripetal and tangential acceleration?

What is the difference between centripetal and tangential acceleration?

Also, what is the difference between centrifugal and centripetal acceleration? I'm not looking for a long lengthy answer. I already know what centripetal acceleration is, however, I'm just confusing the term with these other two terms.

buyhesitestba   409   2 Replies

lenorefrancis

What centripetal acceleration does the car experience when rounding the second curve?

What centripetal acceleration does the car experience when rounding the second curve?

A car rounds a curve of radius R traveling with speed v. It experiences a centripetal acceleration a. The car then speed up so that when it gets to the next curve which has radius 2R, the car is traveling with speed 2v. What centripetal acceleration

Rkamu   330   1 Reply

rj957