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27 Oct 2021
Given information
Given a simple pendulum and asked to analyse its motion in terms of energy by taking friction into account. Also asked to explain why a grandfather clock has to be wound up.
Step-by-step explanation
Step 1.
Energy is the ability to perform work. Energy can neither be created nor be destroyed, but it can be transformed from one form to another.
If we consider frictional force, we can write,
.
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