An external force ?⃗ moves a 2.50-kg box at a constant speed ? up a frictionless ramp, as shown in the figure. The force acts in a direction parallel to the ramp. Calculate the work ? done on the box by this force as it is pushed up the 5.00-m ramp to a height ℎ=3.00 m. How does the work done on the box compare to the change in gravitational potential energy Δ?grav that the box undergoes as it rises to its final height?

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