The kinetic energy $K$ of a particle moving along a circle of radius $R$ depends upon the distance $s$ as $K = as^2$. The force acting on the particle is
The kinetic energy $K$ of a particle moving along a circle of radius $R$ depends upon the distance $s$ as $K = as^2$. The force acting on the particle is
- A
$2a\frac{{{s^2}}}{R}$
- B
$2as{\left[ {1 + \frac{{{s^2}}}{{{R^2}}}} \right]^{1/2}}$
- C
$2as$
- D
$2a$
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