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3 marksKinematics and Dynamics

CAPE Applied Mathematics Unit 2 · 2015 · Paper 2 · Question 6(a)

A pressure washer hose delivers 10 kg of water per second horizontally, hitting a wall at a speed of 30 m s⁻¹. Assuming water does not bounce off, find the average force exerted on the wall.

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  1. 6(b)A 5-tonne truck moving at 4 m s⁻¹ and a 3-tonne truck moving at 7 m s⁻¹ travel along the same road in opposite directions, collide, and couple together. Find…[6 marks]
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  3. 6(d)A string passes over a fixed, smooth, weightless pulley, with masses of 3 kg and 5 kg attached to each end. Calculate the acceleration of the system.[4 marks]

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