Question on: WAEC Physics - 2001
A simple machine with an efficiency of 75% lifts a load of 5000N when a force of 500N is applied to it. Calculate the velocity ratio of the machine
A
10.0
B
13.3
C
17.5
D
25.0
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Correct Option: B
M.A = (\frac{load}{effort} \frac{5000N}{500N} = 10)
V.R = (\frac{M.A \times 100}{V} = \frac{10 \times 100}{75} = 13.3)
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