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A child of mass M is riding a Ferris Wheel of
radius R which turns at constant speed.
What net work is done on the child by the
Ferris Wheel between the time the child is
at his lowest point and the time he is at his
highest point on the wheel's cycle?
1. Zero, from AK = W; the child's kinetic
energy doesn't change.
2.2 Mg R
3. MqR
4. More information is needed.
Sagot :
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