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Q. |
The work done by the string of a simple pendulum during one complete oscillation is equal to |
A. | Total energy of the pendulum |
B. | Kinetic energy of the pendulum |
C. | Potential energy of the pendulum |
D. | Zero |
Answer» D. Zero | |
Explanation: Work done by the string of the simple pendulum during one complete oscillation is zero. Tension in the string exactly cancels the component parallel to the string. This leaves a net restoring force back toward the equilibrium position as equal to zero. |
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