A person brings a mass of 1 kg from infinity to a point a. Initially, the mass was at rest but it moves at a speed of 2 m/s as it reaches a. The work done by the person on the mass is -3 j. The potential at a is
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The work done by friction on the rock when it moves from point A to point B at the bottom of ... One part of the track is a vertical loop with radius 12.0 m. ... 25.0 m/s, v02 5 v0x 2 1 v0y2.
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