Question

A particle is moving in uniform circular motion with speed 'V' and radius 'R'. The angular acceleration of the particle is ______.

Options

• `"V"^2/"R"`along tangent to the circle.

• zero

• `"V"^2/"R"` along the radius towards the centre of the circle

• `"V"^2/"R"`perpendicular to the plane of the circle.

Answer 1

A particle is moving in uniform circular motion with speed 'V' and radius 'R'. The angular acceleration of the particle is zero.

Explanation:

In uniform circular motion, the angular velocity of the particle remains constant and hence its angular acceleration is zero.