Question #137322

Assuming that there are no heat effects and no frictional effects, find the kinetic energy (in Btu) and speed (in fps) of a 3,330-lb body after it falls 877 ft from the rest. Start with the steady flow equation, deleting energy terms which are irrelevant.

Expert's answer

The velocity of boby falling through height H when it started from rest is given as,

V=

Given as - H=877 ft, mass (m)= 3330 lb

g = 32.2 ft/s^{2}

Therefore ,

V= =237.67 m/s

Therefore Kinetic energy

ft-lbf

KE= 120861.75 BTU

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