(Solved) When calculating work, how does the angle of the applied force affect the work done on an object?

Leon.g

wrote...

Go to Answer

Posts: 32

Rep:

11 years ago

When calculating work, how does the angle of the applied force affect the work done on an object?

A.

Only the component of the force acting in the direction parallel to the object?s motion is used to calculate work.

B.

The applied force is greater when the angle between the direction of the force and the motion of the object are at right angles.

C.

The applied force is weakest when the angle between the direction of the force and the motion of the object are in line.

D.

Only the component of the force acting in the direction perpendicular to the object?s motion is used to calculate work.

I've tried researching this for a while yet I still can't understand. Help please?

Read 681 times

3 Replies

Report

Replies

tonya.register

wrote...

11 years ago

Oh come now...this is predicated on knowing the work function. If you are studying work and haven't yet learned the physics, how can you expect to answer the questions?

Find the definition of work function. Use the web if you can't locate it in your text or workbook. This is really simple stuff here, you best learn it.

I'll give you a hint: Work = force F X distance S the force acts over. In math talk that's Q = FS cos(theta) where theta is the angle subtended by F and S vectors. Learn this and you can answer this and similar questions.

Report

Answer accepted by topic starter

Nursey86

wrote...

Posts: 18

Rep:

11 years ago

Report

Related Topics

smmiller223

wrote...

11 years ago

B is the answer the formula for work is W=F dot d,

The dot product means that the whole formula is W=Fd cosx
when x the angle of rotation is at 90 degrees to object cosx=1 because cos 90= 1 when the angle is less or more than 90 the force decreases if the angle (x) is 180 or 0 (same direction as object) the force is 0 because cos0=0 and cos180=0 think of a cosine curve.

Report

New Topic

Home Search Q & A Board Gallery Resource Library Blog Dictionary Chat	Quick Links Start a Topic Latest Topics Unanswered Questions Courses Study Tools Browse by Textbook	Social Facebook YouTube Community Stats Who's Online Trending Staff	Help About Us Take the Tour Study Tips Posting Guidelines Terms and Policies Contact Us
Biology Forums - Study Force © 2010-2024 \| Powered by SMF \| SMF © 2015, Simple Machines \| Sitemap Biology-Forums.com is not affiliated with any publisher. Book covers, title and author names appear for reference only.