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
Correct Answer: Option B
Explanation
M.A = (frac{load}{effort} frac{5000N}{500N} = 10)
V.R = (frac{M.A times 100}{V} = frac{10 times 100}{75} = 13.3)