An object in uniform circular motion has centripetal acceleration when its linear speed is

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

An object in uniform circular motion has centripetal acceleration

a

when its linear speed is

v

. If the speed is tripled while the radius remains unchanged, the new centripetal acceleration will be (a)

12a

(b)

9a

(c)

3a

(d)

6a