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A Blackhawk helicopter with a weight of 20,000 lb takes off in a vertical direction with...

A Blackhawk helicopter with a weight of 20,000 lb takes off in a vertical direction with an upward thrust of 34,000 lb. Determine the velocity in mph of the helicopter when it has reached a height of 100 feet.

A.) 32

B.) 46

C.) 67

D.) 75

Engineering   Civil-Engineering   
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