FIGURE 8-1
-You need to load a crate of mass m onto the bed of a truck. One possibility is to lift the crate straight up over a height h, equal to height of the truck's bed. The work done in this case is W₁. The other possibility is to slide the crate up the frictionless ramp of length L as shown in Figure 8-1. In this case you perform work W₂. What statement is true?

Question

FIGURE 8-1

-You need to load a crate of mass m onto the bed of a truck. One possibility is to lift the crate straight up over a height h, equal to height of the truck's bed. The work done in this case is W₁. The other possibility is to slide the crate up the frictionless ramp of length L as shown in Figure 8-1. In this case you perform work W₂. What statement is true?

Quizplus · Accepted Answer

The work done against gravity is the same in both cases, mgh.

FIGURE 8-1 -You Need to Load a Crate of Mass M onto Mass