Question

Example of moment arm

Answer 1

Answer:

A good example of such a joint is the elbow. ... Having defined a joint ICR, the moment arm is defined as the perpendicular distance from line of force application to the axis of rotation. This is illustrated for a simulated elbow joint. In A, the elbow joint is almost fully extended.

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Answer 2

Answer:

For example, a bowling ball (large mass) moving very slowly (low velocity) can have the same momentum as a baseball (small mass) that is thrown fast (high velocity). A bullet is another example where the momentum is very-very high, due to the extraordinary velocity.