Physics · JEE | MOTION IN A PLANE

What is the magnitude of centripetal acceleration \( a_c \) of an object moving with linear speed \( v \) in a circular path of radius \( R \)?

1. A
   \( a_c = \frac{v}{R^2} \)
2. B
   \( a_c = \frac{v^2}{R} \)
3. C
   \( a_c = vR \)
4. D
   \( a_c = \frac{R}{v^2} \)