Question

102. Which one of the following is an example of the force of gravity of the earth acting on a vibrating pendulum bob? (a) Applied force (b) Frictional force (c) Restoring force (d) Virtual force​

Answer 1

Answer:

The other component of mg is perpendicular to string (mg Sinθ) which try to pull the bob towards its mean position. The force which acts to bring a body to its mean position is called as restoring force. Thus the force of gravity by earth on the bob of a vibrating pendulum is an example of restoring force.

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