Thursday
March 23, 2017

Post a New Question

Posted by on Thursday, April 12, 2012 at 12:26pm.

a ball dropped on to a floor .if the coefficient of restitution is 0.5.the percentage loss of energy of the ball on rebounding from the floor is?

  • physics - , Thursday, April 12, 2012 at 1:42pm

    Before: m(v1)^2/2
    After:
    since v2= v1/2,
    m(v2)^2/2 = m(v1)^2/2•4
    ΔE = E1- E2 = m(v1)^2/2 - m(v1)^/2•4 =
    = (3/4) •m(v1)^2/2

  • physics - , Thursday, September 8, 2016 at 12:08pm

    75%

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question