A particle moves anticlockwise in a horizontal circle of radius centred at the origin…
PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A particle moves anticlockwise in a horizontal circle of radius r centred at the origin of an x–y coordinate system. At the instant when the particle is at the point (r,0), what is the direction of its instantaneous linear velocity?
(a) along −y-direction
(b) along +y-direction
(c) along +x-direction
(d) along −x-direction