The handle of a screw jack is 35 cm long and pitch o...
The handle of a screw jack is 35 cm long and pitch of the screw is 0.5 cm. What force must be applied at the end of the handle to lift a load of 2000N, if the efficiency of the jack is 30% [π = 22/7]?
152.0N
132.0N
15.2N
440.0N
Correct answer is C
No explanation has been provided for this answer.
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