Question

The mechanical advantage of a machine is 2. How much effort should be exerted on it
so that it lifts a load of 30 N?

Answer 1

Explanation:

The mechanical advantage of a machine is 2. ... Mechanical advantage MA is the ratio of output (generated by the machine) force to input (applied to the machine) force. So MA = 2 means that for example if you apply 100 N then your machine will multiply that force and generate 200 N. hope it helps!

Answer 2

Answer:

The mechanical advantage of a machine is 2. 60N effort should be exerted on it so that it lifts a load of 30 N.

Explanation:

The force amplification achieved by using a tool, mechanical device, or machine system is referred to as mechanical advantage. To achieve the appropriate amplification in the output force, the gadget trades off input forces against movement.

Given Ma = 30 N and load = 2

We know that ma = load / effort

Therefore effort = load x ma

Effort = 2 x 30 = 60 n