question_answer

The centripetal acceleration of particle of mass m moving with a velocity v in a circular orbit of radius r is:

A) \[{{v}^{2}}/r\]along the radius, towards the centre

B) \[{{v}^{2}}/r\]along the radius, away from the centre

C) \[m{{v}^{2}}/r\]along the radius, away from the centre

D) \[m{{v}^{2}}/r\]along the radius, towards the centre

E) \[vr\]along the radius away from the centre