Question

Calculate the mechanical advantage of a machine which overcomes a resistance of 800N through a distance of 0.12m, while an effort of 160N acts through a distance of 0.72m.

Answer 1

1. Definition:

Mechanical advantage:

It is the ratio of the force that performs the useful work of a machine to the force that is applied.

Mechanical advantage =$\frac{load}{effort}$

2. Solution:

Given that,

load = 800N

effort = 160N

Mechanical advantage = $\frac{load}{effort}$= $\frac{800}{160}$= 5

3. Conclusion:

Hence, the mechanical advantage is 5.