A 17 kg box sitting on a shelf has a potential energy of 350 J. How high is the shelf? Round your answer to the nearest whole number.

2m

2m

It is 2m

Those answer are 2m because it is how the question is and mybe you can tell why

A crane lifts a cargo box 10 m off the ground. If the crane lifts the cargo box twice as high, the potential energy will increase by

The answer is 225

PE = mgh = 17 x 9.8 x h = 350 J