A pulley of radius 2 {\m} is rotated about its axis by a force F= (20 t-5 t^2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 {\kg}- {\m}^2 the number of rotation made by the pulley before its direction of motion is reversed, is:

Question

A pulley of radius 2  {\m} is rotated about its axis by a force F= (20 t-5 t^2)  newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10  {\kg}- {\m}^2 the number of rotation made by the pulley before its direction of motion is reversed, is:

Examsnet · Accepted Answer

Correct Answer is : more than 3 but less than 6

AIEEE 2011 Solved Paper