Solve the problem.
-A rescue cable attached to a helicopter weighs 2 lb/ft. A 170-lb man grabs the end of the rope and is pulled from the ocean into the helicopter. How much work is done in lifting the man if the helicopter is 50 ft above the
Water?
A) 2670 ft · lb
B) 13,500 ft · lb
C) 8600 ft · lb
D) 11,000 ft · lb
Correct Answer:
Verified
Q190: Solve the problem.
-A dome is in
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-It took 1900 J of
-The gravitational force (in
-A vertical right circular
-A vertical right circular
-The spring of a spring
-A force of 4 N
-A spring has a natural
-A force of 1100 lb
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