Question

Efficiency of a machine is 60% . The effort moves through 3 meters , when the load moves 12 cm. What is the mechanical advantage? ​

Answer 1

Answer:

Explanation:

Efficiency = M.A./V.R

We know, V.R. = displacement of effort/ displacement of load

V.R. = 3cm/12cm

V.R.=1/4

Substituting in equation,

60/100=M.A./1/4

60/100=4 X M.A.

0.15 =M.A.