Which is a result of using a machine?

1. The mechanical advantage makes the work output greater than the work input.
2. The machine can put out force without having any force applied to it.
3. A large force can be exerted through a long distance to have a small force exerted through a short distance.
4. A large force can be exerted through a short distance to have a small force exerted through a long distance.

Option A

Explanation:

The mechanical advantage of using a machine is that the output of the product is much more than the input.

The product produced by the machines are in bulk, same size and quality because of the parameters already set in the machine.

The use of machines is very economical as there is no requirement of man power so that cost is already been deducted and then due to the mass production the revenue is much more.

A

The mechanical advantage makes the work output greater than the work input.

Explanation: