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A luge and its rider, with a total mass of 50 kg, emerge from a downhill...

A luge and its rider, with a total mass of 50 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 39 m/s. If a force slows them to a stop at a constant rate of 1.2 m/s2, (a) what magnitude F is required for the force, (b) what distance d do they travel while slowing, and (c) what work W is done on them by the force? What are (d) F, (e) d, and (f) W if they, instead, slow at 2.4 m/s2?

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