(a)[3]
Use an energy approach to determine the maximum height attained by the ball after it bounces.
(b)[3]
Determine the total time taken from the moment the ball is released until it reaches this maximum height.
Mathematics 9709 · AS & A Level · Energy, work and power
Energy, work and power — practice question
A ball with mass $1.6\,\text{kg}$ is let go from rest from a position $5\,\text{m}$ above horizontal ground. As soon as it strikes the ground, it instantly loses $8\,\text{J}$ of kinetic energy and then moves upwards.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Determine the loss of PE or KE when the ground is reached, e.g. $PE=1.6\times10\times5=80\text{ J}$” …
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