Top Posters
Since Sunday
d
4
N
3
3
R
3
k
3
o
3
Z
3
j
3
s
3
d
3
J
3
1
3
Home Q & A Board Science-Related Homework Help Physics
New Topic  
datdude666 datdude666
wrote...
Go to Answer
Posts: 75
Rep: 1 0
11 years ago
A block oscillating on a spring has a maximum kinetic energy of 2.0 J. What will be the maximum kinetic energy if the amplitude is doubled? Explain please!
Read 594 times
2 Replies
Replies
Answer accepted by topic starter
NVstudentNVstudent
wrote...
#1
11 years ago
Sign in or Sign up in seconds to unlock everything for free
This verified answer contains over 160 words.
1

Related Topics

wrote...
#2
11 years ago
Kinetic energy is proportional to the velocity. So

Original KE = (1/2) m v^2
v = x / t
Original KE = (1/2) m (x/t)^2
where x = amplitude.

If x increases to 2x then
New KE = (1/2) m (2x/t)^2 = 4 * (1/2 m x^2/t^2) = 4 * (1/2) m v^2

The new KE is 4 times to original KE. So
new KE = 4 * 2 = 8 J
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1513 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 319
  
 339
  
 41
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 484
Previous poll results: Which country would you like to visit for its food?