Question

For a body in circular motion with a constant angular velocity, the magnitude of the average acceleration over a period of half a revolution is ............times the magnitude of its instantaneous acceleration.

a) 2/pie
b) pie/2
c) pie
d) 2

Answer 1

Hii friend,

The time period for revolution is,

T=2π/omega

when omega= constant (:-1)

T=2π

Since it is half rotation,

T/2=2π/2
T=π.

The answer is option (c).

Hope this helps you a little!!