A machine of velocity ratio 5 is used in lifting a load with an effort of 500N. If the machine is 80% efficient. Determine the magnitude of load
-
A.
2500N -
B.
2000N -
C.
900N -
D.
625N
Correct Answer: Option B
Explanation
M.A = (frac{Eff times V.r}{100} = frac{80 times 5}{100} = 4)
Load = effort x M.A
= 4 x 500 = 2000N