A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means
Question:
A cave 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 10.0 m:
(a) The initially stationary spelunker is accelerated to a speed of 5.00 m/s;
(b) He is then lifted at the constant speed of 5.00 m/s;
(c) Finally he is decelerated to zero speed. How much work is done on the 80.0 kg rescue by the force lifting him during each stage?
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We used to denote the magnitude of the spelunkers d...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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