Physics (AS & A Level) · May / June 2018 · Paper 21 · Question 2
9702
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2(a)[1]
2(b)(i)[5]
1. from 0–2 s, distance = ½ × 2 × 6.8 (= 6.8 m) and from 2–3 s, distance = ½ × 1 × 3.4 (= 1.7 m) magnitude of displacement = 5.1 m direction of displacement is down(wards) 2. (∆E) = mg∆h or (E) = mgh or (E) = Wh (∆)E = 15 × 5.1 = (–) 77 J
2(b)(ii)[2]
2(b)(iii)[2]
2(b)(iv)[3]
2(b)(v)[2]
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