Physics (AS & A Level) · Oct / Nov 2021 · Paper 22 · Question 4
9702
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The question as text
A child sits on the ground next to a remote-controlled toy car. At time t = 0, the car begins to move in a straight line directly away from the child. The variation with time t of the velocity of the car along this line is shown in Fig. 4.1. 00 1 2 3 t / s velocity / m s–1 4 5 6 5 10 15 Fig. 4.1 The car’s horn continually emits sound of frequency 925 Hz between time t = 0 and time t = 6.0 s. The speed of the sound in the air is 338 m s–1.
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4(a)(i)[1]
4(a)(ii)[1]
4(b)[2]
4(c)[2]
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