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