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Practice question

MCQ

Question

A cyclist moves east at 18m/s while the wind blows south at 24m/s. What is the magnitude of the relative velocity of the wind with respect to the cyclist?

Options

Choose one · Correct answer highlighted

Explanation

Relative velocity vwc=vw−vc, where vc=18i^,vw=−24j^. 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 30 m/s as the result, so option B is correct.

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