explain the law of conservation of angular movement
Answers
Answer:
Angular Momentum:
The conserved quantity we are investigating is called angular momentum. The symbol for angular momentum is the letter L. Just as linear momentum is conserved when there is no net external forces, angular momentum is constant or conserved when the net torque is zero. We can see this by considering Newton’s 2nd law for rotational motion
1. A closed system is involved.
Nothing is making an effort to twist the Earth or the high-diver. They are isolated from rotation changing influences (hence the term “closed system”).
2. Something remains unchanged.
There appears to be a numerical quantity for measuring rotational motion such that the total amount of that quantity remains constant in a closed system.
3. Something can be transferred back and forth without changing the total amount.
A diver rotates faster with arms and legs pulled toward the chest from a fully stretched posture.
Answer:
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