Question

113.
In uniform circular motion, the velocity vector and acceleration vector are
1) Perpendicular to each other
2) Same direction
3) Opposite direction
4) Not related to each other

Answer 1

Answer:

(1) perpendicular to each other

Explanation:

In uniform circular motion, speed is constant.

So, there is no tangential acceleration.

It has only radial acceleration a

r

=

R

v

2

[directed towards center] and its velocity is always in tangential direction.

So these two are perpendicular to each other.