Asked by UEW
A ball of mass 1kg is dropped from a height of 7m and rebounds to a height of 4.5m. Calculate:
(I) its KE just before impact
(II) its initial rebound velocity and KE
(III) Account for the loss of KE on the impact.
(I) its KE just before impact
(II) its initial rebound velocity and KE
(III) Account for the loss of KE on the impact.