A person using a lever applies 98 Newtons to lift a 20-kilogram box. They apply the force over a distance of 4 meters to lift the box a distance of 2 meters. How much work is done?
A. 196
B. 40
C. 392
D. 80
The work done can be calculated by multiplying the force applied by the distance moved in the direction of the force. In this case, the force applied is 98 Newtons and the distance moved in the direction of the force is 2 meters (the height the box is lifted). Therefore, the work done is:
Work = force x distance
Work = 98 N x 2 m
Work = 196 Joules
The answer is A. 196.