Answer:
Explanation:
The linear velocity of a point on the circumference of the pulley at any instant is equal to the linear velocity of the weight, i.e.,
v = √(2aS).
When the weight has travelled a distance of 100 cm, the velocity is 20cm/sec. The angular velocity is ω = 1/sec. The acceleration of point A is the resultant of the linear acceleration a and the centripetal acceleration v2/r (Fig.):