The radius of a wheel is 30.0 cm and that of its axle is ...
The radius of a wheel is 30.0 cm and that of its axle is 6.0cm. Calculate the effort required to lift a load of 120.0N using this machine. Assuming 100% efficiency
600.0N
40.0N
24.0N
20.0N
Correct answer is C
V.R = Rr=306=5
γ=M.AV.R×1001
M.A = 100×5100=5
Effort = LM.A=1205
= 24N
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