Determine how much energy was vanished due to friction
A child of 22.0 kg descends a slide 5.00 m high and reaches the bottom having a speed of 2.50m/s. Determine how much energy was vanished due to friction?
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The effective coefficient of kinetic friction is 0.40. Compute the force applied by the man, the work done by the man on the piano, the work done by the friction force, the work done by the force of gravity, and the total work done on the piano.
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Determine the speed and direction of the wrecked vehicles just following the collision, supposing external forces can be avoided.
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