Hiker stands at the bottom of steep hill. The hiker may follow a straight line path to the top of the hill, a distance of 300 feet, or she may follow a zig-zag path to the top of the hill and walk a distance of 600 feet.
The work done by the force of gravity along the zig-zag path is how many times the work going along the straight path? Is it:
a) Equal
b) Twice
c) 4 times
d) 8 times?
Ans- Equal