A ball moves east with a speed of

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A 0.20 kg0.20\,\text{kg} ball moves east with a speed of 5.0 m/s5.0\,\text{m/s}. A constant 30 N30\,\text{N} force acts westward on the ball for 0.010 s0.010\,\text{s}. What is the ball’s speed and direction immediately after the force stops? (a) 4.7 m/s4.7\,\text{m/s} east (b) 3.5 m/s3.5\,\text{m/s} west (c) 3.5 m/s3.5\,\text{m/s} east (d) 6.5 m/s6.5\,\text{m/s} east

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