Question

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/s^{2}, **(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/s^{2}?

Answer #1

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