A person using a lever applies 98 N to lift a 20 kg box they apply the force over a distance of 4 m to lift the box of distance of 2 m. How much work is done.
The work done can be calculated using the formula:
Work = Force x Distance
In the first part of lifting the box, the force applied is 98 N and the distance over which it is applied is 4 m. So the work done in the first part is:
Work = 98 N x 4 m = 392 J
In the second part of lifting the box, the force applied remains the same at 98 N but the distance over which it is applied is 2 m. So the work done in the second part is:
Work = 98 N x 2 m = 196 J
Therefore, the total work done to lift the box is:
Total Work = Work1 + Work2 = 392 J + 196 J = 588 J
Therefore, the total work done to lift the 20 kg box using a lever is 588 Joules.