Physics · May / June 2024 · Paper 42 · Question 3
0625
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The question as text
A student drops a heavy ball from a vertical height of 1.8 m above the ground. The ball then falls to the ground. It does not bounce after hitting the ground.
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3(a)[3]
gravitational (potential) energy (store before / as the ball falls)
kinetic energy (store) increases (as the ball falls) OR energy transferred to kinetic energy (store as the ball falls) (energy transferred from) kinetic energy (store) to internal / thermal energy (store)
3(b)[3]
5.9 m / s
(Δ)Ep = (Δ)Ek OR Ep lost = Ek gained OR gravitational potential energy lost = kinetic energy gained OR mg(Δ)h = ½mv2 v2 = 2g(Δ)h OR v2 = 2 × 9.8 × 1.8 OR v2 = 35(.28)
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