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  3. a body weighing 128 pounds hangs from a spring wit

A body weighing 128 pounds hangs from a spring with constant 1400 lb/ft. The medium, where...

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Civil Engineering

A body weighing 128 pounds hangs from a spring with constant1400 lb/ft. The medium, where the body moves, offers a force ofopposition to the movement numerically equal to 15 for itsinstantaneous speed. If the weight is released 2 feet above itsbalance position, say how fast it should be initially pushed sothat after 6 seconds it reaches the lower limit position. Take theconstant of gravity as 32 ft/sec^2.

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