A stone of mass ‘m’ is rotated in a circular path with a uniform s

1.	A stone of mass ‘m’ is rotated in a circular path with a uniform speed by tying a strong string with the help of your hand. Answer the following questions : 1. Is the stone moving with a uniform or variable speed? 2. Is the stone moving with a uniform acceleration? In which direction does the acceleration act? 3. What kind of force acts on the hand and state its direction?
Answer» 1. The stone is moving with uniform speed as given in the question. 2. Uniform acceleration. It acts at right angles to the direction of motion of stone. 3. The force which acts on the hand is the Centripetal force. It is directed towards the hand along the string.

A stone of mass ‘m’ is rotated in a circular path with a uniform speed by tying a strong string with the help of your hand. Answer the following questions : 1. Is the stone moving with a uniform or variable speed? 2. Is the stone moving with a uniform acceleration? In which direction does the acceleration act? 3. What kind of force acts on the hand and state its direction?

Answer»

1. The stone is moving with uniform speed as given in the question.

2. Uniform acceleration. It acts at right angles to the direction of motion of stone.

3. The force which acts on the hand is the Centripetal force. It is directed towards the hand along the string.