Question

what happens when mechanical advantage will be unity? 1.force will be zero 2.force will be less than load 3.force will be equal to load 4.force will be greater than load

Answer 1

Explanation:

3.Force will be equal to the load

Answer 2

When the mechanical advantage is equal to unity, it means that the effort or force applied on the system or machine is equal to the load. Hence, option 3 is correct.

Explanation:

Mechanical advantage is defined as the ratio of

• load to effort
• output force to the input force
• input arm distance to output arm distance

Hence if it is given that if the mechanical advantage of any system or machine is equal to unity, it simply indicates that the force will be equal to load, as given in option 3.