# VC1.11

From Example Problems

Given,

i).Velocity=v=

Therefore,

or

Showing that the velocity of the particle v is perpendicular to r.

ii).Acceleration a=

Showing that the acceleration of the particle a is opposite to that of r and so it is directed towards the origin.

Again,the magnitude of acceleration =modulus of is

which is proportional to r. i.e the distance of the particle from the origin.