Physics, 19.12.2021 14:00 marshallmattah
A train starts at rest and ends up with 1500 J of kinetic energy. How much work was done on the train?
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A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.
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A train starts at rest and ends up with 1500 J of kinetic energy. How much work was done on the trai...
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