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Question

A cyclist moving at 10m/s accelerates at 1m/s2 for 5s, then decelerates at 2m/s2 to rest. What is the total distance covered?

Options

Choose one · Correct answer highlighted

Explanation

Phase 1: v=10+1⋅5=15m/s, x1=10⋅5+12⋅1⋅(5)2=50+12.5=62.5m. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 115 m as the result, so option A is correct.