A hockey puck slides east at on frictionless ice

PHYSICS · Single correct · GCSE · Physics · Forces · Forces

Problem

A 0.20 kg0.20\,\text{kg} hockey puck slides east at 6.0 m/s6.0\,\text{m/s} on frictionless ice. A constant 1.5 N1.5\,\text{N} force directed west acts on the puck for 2.0 s2.0\,\text{s}. Which of the following statements most accurately describes the puck at the end of the 2.0 s2.0\,\text{s} interval? (a) It continues to move east but slows to about 5.4 m/s5.4\,\text{m/s}. (b) It reverses direction and moves west at approximately 9 m/s9\,\text{m/s}. (c) It comes to rest and remains stationary on the ice. (d) It reverses direction and moves west at about 3 m/s3\,\text{m/s}.

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