Question
Physics Question on rotational motion
Two persons stand at the edges of a rotating circular platform at diametrically opposite points. If they start moving towards each other at uniform velocity, then its
A
angular velocity decreases
B
moment of inertia increases
C
moment of inertia remains increases
D
angular velocity increases and moment of inertia decreases
E
both angular velocity and moment of inertia remain constant
Answer
angular velocity increases and moment of inertia decreases
Explanation
Solution
The correct option is (D) : angular velocity increases and moment of inertia decreases