Suppose you lift a 18 kg
box by a height of 1.0 m
. How much work do you do in lifting the box?
Instead of lifting the box straight up, suppose you push it up a 1.0- m
-high ramp that makes a 30 ∘
degree angle with the horizontal, as shown in (Figure 1). Being clever, you choose a ramp with no friction. How much force is required to push the box straight up the slope at a constant speed?
How long is the ramp?
Use your force and distance results to calculate the work you do in pushing the box up the ramp.