A toy car moves in a straight line at

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

Problem

A 0.75 kg0.75\,\text{kg} toy car moves in a straight line at 2 m/s2\,\text{m/s}. A constant forward force of 3 N3\,\text{N} acts on it for 4 s4\,\text{s}. What is the speed of the car at the end of this time? (a) 14 m/s14\,\text{m/s} (b) 18 m/s18\,\text{m/s} (c) 10 m/s10\,\text{m/s} (d) 16 m/s16\,\text{m/s}

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