A point object moves on a circular path such that distance covered by it is given by function S 2t meter t in 2 second The ratio

Question

A point object moves on a circular path such that distance covered by it is given by function S 2t meter t in 2 second The ratio of the magnitude of acceleration at t 2s and t 5 s is 1 2 then the radius of the circle is A 1m B 3 51 m

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