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The kinetic energy k of a particle moving along a circle of radius R depends on the distance covered s as k = as2 where a is a constant. The force acting on the particle is

(a) 2a s2/R

(b) 2as(1+s2/R2)1/2

(c) 2as

(d) 2a R2/s

1 Answer

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Best answer

Correct Option  (b) 2as(1+s2/R2)1/2

Explanation: 

According to given problem 

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