Question

For a particle, P = a cos(at)i + a sin (ot)], where is
position vector and tis time, then velocity of particle is
A)Directed towards the origin
B)Directed away from the origin
C)Parallel to the position vector
D)Perpendicular to the position vector

Answer 1

Answer:

A particle moves so that its position vector is given by vector r = cos ωt x + sin ωt y, where ω is a constant. ... (a) Velocity is perpendicular to vector r and acceleration is directed towards the origin