A pulley of radius 1.5 m is rotated about its axis by a force F = (12t - 3t 2 ) N applied tangentially (while t is measured in seconds). If moment of inertia of the pulley about its axis of rotation is 4.5 kg m 2 , the number of rotations made by the pulley before its direction of motion is reversed, will be 
. The value of K is____.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(18)
For 
No. of revolutions = 
K= 18
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