Rotational Kinematics | MCQs

Explanation

 The moment of inertia of a solid sphere is (2/5)MR^2, where M is the mass and R is the radius.

This formula applies when the axis of rotation passes through the center of the sphere. 

Explanation

Speed = 3000 RPM (revolutions per minute)

Step 1: Convert RPM to revolutions per second (RPS)

Step 2: Convert revolutions to radians

Since 1 revolution = 2π radians:

50 rev/sec×2π= 100π radians/sec

Explanation

Explanation

For a rigid body that rotates about a fixed axis, the angle swept out by a line passing through any point on the body and intersecting the axis of rotation perpendicularly is called angular displacement.

Explanation

The moment of inertia depends on the mass of the object,

how the mass is distributed relative to the axis of rotation,

and the axis of rotation itself,

but it does not depend on the angular velocity.