The 40-lb block is moving downward with a speed of 3 ft/s at t = 0 when
Question:
The 40-lb block is moving downward with a speed of 3 ft/s at t = 0 when constant forces P and 2P are applied through the ropes. Knowing that the block is moving upward with a speed of 2 ft/s when t = 4 s, determine
(a) The magnitude of P,
(b) The time at which the speed is zero. Neglect the effect of friction and the masses of the pulleys.
Transcribed Image Text:
40 lb 2P
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2P P 2P 4016 a b 1 F dt m ...View the full answer
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Related Book For
Vector Mechanics for Engineers Statics and Dynamics
ISBN: 978-0073212227
8th Edition
Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell
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