Q16 of 37 Page 22

A cyclist starts from centre O of a circular park of radius 1km and moves along the path OPRQO as shown Fig. 4.3. If he maintains constant speed of 10ms-1, what is his acceleration at point R in magnitude and direction?


It is given that cyclist maintains its constant speed =10m/s that is the magnitude of velocity is



And we acceleration’s magnitude is given by




We know the acceleration will directed from R to O since this is a centripetal acceleration it will always be towards inside.


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