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15-04-2024
Physics

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QUESTION 4 The diagram below shows a bullet of mass 20 g that is travelling horizontally at a velocity Q m.s¹. The bullet strikes a stationary 7 kg box and becomes embedded in it. The bullet and the box together travel on a 2 m long rough horizontal surface X - Y before coming to a stop at point Y 20 g Qm.s BULLET-BOX 7 kg SYSTEM 2 m 4.1 Use the WORK-ENERGY THEOREM to calculate the magnitude of the velocity of the bullet-box system immediately after the bullet strikes the box, given that the frictional force between the box and the surface is 10 N State the principle (4)

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