The handle of a screw jack is 35 cm long and the 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 = \(\frac{22}{7}\)]?
a
152.0N
b
132.0N
c
15.2N
d
440.0N
Explanation
Correct Option
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