Question

(a) Define uniform acceleration. What is the acceleration of a body moving with uniform

velocity?

(b) A particle moves over three quarters of a circle of radius r. What is the magnitude of its

displacement?

Answer 1

A1)A body moving with constant speed and direction.
A2)
$\sqrt{2 {r}^{2} }$

Answer 2

Any object moving with constant velocity in certain direction.