posted by Anonymous .
The builders of the Great Pyramids of Egypt are thought to have used ramps to move the large 20,000 kg (22 ton) stone blocks into place at the construction site. To reduce friction, the Egyptians are assumed to have used rollers between the ramp and each block, enabling the block to be more easily pushed up the ramp. (For this problem, assume they were successful at eliminating friction, and therefore the block experiences no friction as it moves up the ramp). How much force is required to push one of these blocks up a ramp, where the block rises in height 1 m and travels 20 m along the ramp’s surface? Assume the block travels at constant velocity