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

Force, Work, Power, Energy (10)

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. Uniform speed
  2. Yes, Radially inwards.
  3. Centrifugal force acting radially outward

 

  • Exam Year: 2016