A particle moves anticlockwise in a horizontal circle centred at the origin
PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
A particle moves anticlockwise in a horizontal circle centred at the origin. At t=0 it is at the point (r,0) and its velocity is along the +y-direction. After the particle has moved through an angular displacement of 120o, the directions of its velocity and acceleration respectively are
(a) toward south-east and south-west
(b) toward north-east and north-west
(c) toward south-west and south-east
(d) toward south-west and north-west