Physics 0625 · IGCSE · Motion

Motion — practice question

Fig. 2.1 illustrates a cliff edge with water beneath it. A ball drops over the cliff edge. The ball has mass 160 g. The cliff is 115 m high.
(a)[3]

Calculate the vertical speed of the ball when it reaches the water. Ignore air resistance.

(b)[2]

Calculate the vertical momentum of the ball when it reaches the water.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: loss of PE equals gain in KE

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