Question 44
A $50\%$ loss of kinetic energy equates to a $50\%$ loss of gravitational potential energy and hence height. Therefore the height after each bounce is half what it was before that bounce.
After bounce 1 : height $= 8m$
After bounce 2 : height $= 4m$
After bounce 3 : height $= 2m$
After bounce 4 : height $= 1m$
A $50\%$ loss of kinetic energy equates to a $50\%$ loss of gravitational potential energy and hence height. Therefore the height after each bounce is half what it was before that bounce.
After bounce 1 : height $= 8m$
After bounce 2 : height $= 4m$
After bounce 3 : height $= 2m$
After bounce 4 : height $= 1m$