Question

The largest blocks in the Great Pyramid weigh 15 tons (about 13,600 kg).

Dragging such a block up a ramp with a mechanical advantage of 3 would
require a force of 4.5 104 N. If 9.0 105 J of work was done on the block to
move it up the ramp, neglecting friction, how far was the block moved?

Answer 1

The distance the block was moved up the ramp, after doing a work of 9.0 × 105 joules with a force of 4.5 × 104 newtons, was 20 meters, neglecting the effect of friction.

Step-by-step explanation:

The student's question is about determining the distance a block was moved up a ramp after doing a certain amount of work, given the force required. This is a physics problem involving the work-energy principle. The equation to use is Work = Force × Distance, where Work is given as 9.0 × 105 Joules and the force is 4.5 × 104 Newtons (N). To find the distance, rearrange the equation to Distance = Work / Force. Substituting the provided values:

Distance = (9.0 × 105 J) / (4.5 × 104 N)

The calculation then yields:

Distance = 20 meters

Therefore, neglecting friction, the block was moved 20 meters up the ramp.