wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

the momentum of an object is doubled how does its kinetic energy change

Open in App
Solution

Dear student,
let mess m, and velocity v
kinetic energy =( 1/2)mv2
And momentum = mv
kinetic energy(E) related by momentum(p) by
E = p2/(2m)
Now if momentum is doubled,
Initial momentum is p1=p and finally p2= 2p
So, E1= p2/(2m)
and finally
E2= (2p)2/(2m) = (4p2)/(2m) = 4E1
So if momentum doubled kinetic energy change by 4 times.
Regards

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Second Law of Motion
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon