Another athlete using a different spring exerts an average force of 400 N to enable her
to ext...
Physics, 07.03.2020 06:47 charityclark1141
Another athlete using a different spring exerts an average force of 400 N to enable her
to extend the spring by 0.210 m.
Calculate the work done by this athlete in extending the spring once.
Answers: 3
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Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
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Answers: 1
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