A box with a mass of 5kg rests at the bottom of the incline as shown above. a. How much work is needed to move the box from position A to B assuming that the surfaces are frictionless? (5 points) b. Now assume that there is friction on all of the surfaces, in a sentence or two, explain how the work needed to move the box from position A to B would change? (3 points) c. If the mass of the box doubled, explain how the work needed to move the box from position A to B would change? (2 points) -3 m B -2 m- 4 m 2'm