600 Joules of work is used to lift a box from the ground to a height of six meters. How much
work would have been done if a lever would have been used with an effort arm of 12 meters
and a load arm of 6 meters? (1 point)
50 J
100 J
600 J
72 J
72 J
Work done = force x distance
In the first scenario, work done = force x distance = mgh = 600 J, where m is the mass of the box, g is the acceleration due to gravity, and h is the height lifted.
In the second scenario using a lever, we can calculate the work done as follows:
Work = (effort force x effort arm) = (load force x load arm)
600 J = (effort force x 12 m) / 6 m
effort force = 1200 N
Therefore, work done = force x distance = 1200 N x 6 m = 7200 J = 72 J
So, the correct answer is 72 J.