The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. To accomplish this, the mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system

What is the work done by the mechanic?

To find the work done by the mechanic, we can use the formula:

Work = Force * Distance

In this case, the force applied by the mechanic is 225 newtons and the distance is 37.5 meters. Plugging these values into the formula, we get:

Work = 225 newtons * 37.5 meters

Calculating the multiplication, the work done by the mechanic is:

Work = 8,437.5 newton-meters or joules (since work is measured in joules)

So, the mechanic does 8,437.5 joules of work to lift the engine using the block and tackle system.

To find the work done by the mechanic, we can use the formula:

Work = Force * Distance

In this case, the force applied by the mechanic is 225 newtons and the distance the chain is pulled through the pulley system is 37.5 meters.

Therefore, the work done by the mechanic is:

Work = 225 newtons * 37.5 meters = 8437.5 joules

So, the work done by the mechanic is approximately 8437.5 joules.