Physics · May / June 2023 · Paper 41 · Question 2
0625
As printed in the paper
The question as text
Fig. 2.1 shows a motorcyclist accelerating along a straight horizontal section of track. Fig. 2.1 The motorcyclist and motorcycle have a combined mass of 240 kg.
Read automatically from the paper; the printed page above is exact.
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2(a)(i)[2]
(speed =) 38 m / s
a = ∆v / ∆t OR (∆v =) a∆t OR (∆v =) 7.2 × 5.3
2(a)(ii)[2]
(resultant force = ) 1 700 N
F = ma OR (F =) ma OR (F =) 240 × 7.2
2(b)(i)[1]
(vector) has direction (as well as magnitude) OR scalar does not have direction
2(b)(ii)[1]
(velocity) changes (as direction of motion changes) OR direction (of velocity) changes
2(b)(iii)[2]
any two from:
because there is an acceleration / change in velocity / change in direction / change in momentum (which needs a (resultant) force is perpendicular to the motion (of the motorcycle) OR a ∝ F
resultant force)
motorcyclist accelerates / changes momentum (because velocity / direction changes)
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