It takes 1000 N of force to lift a go kart onto a work table. If the mechanic uses a pulley with a mechanical advantage of 4 to lift the kart, how much force is needed?

Answer 1

To find the amount of force needed with a pulley of mechanical advantage 4, we need to divide the original force of 1000 N by 4:

1000 N / 4 = 250 N

Therefore, with a pulley of mechanical advantage 4, the mechanic only needs to apply 250 N of force to lift the go kart onto the work table.