State the law of conservation of angular momentum and explain with a suitable example.
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Solution
The law of conservation of angular momentum states that when no external torque acts on an object, no change of angular momentum will occur.
Some examples of momentum:
The Earth continues to spin at the same rate it has for billions of years
A high-diver who is “rotating” when jumping off the board does not need to make any physical effort to continue rotating, and indeed would be unable to stop rotating before hitting the water.