The coefficient of kinetic friction for a 22 kg bobsled on a track is 0.10?

Question

What force is required to push it down a 6.0° incline and achieve a speed of 66 km/h at the end of 75 m?

N

Answer 1

EDIT:  Corrected a few typos.

The required acceleration is given by s = 0.5*v²/a, so a = 0.5*v²/s

The actual acceleration will be g*sinθ - µ*g*cosθ + F/m so

0.5*v²/s = g*sinθ - µ*g*cosθ + F/m

F = [0.5*v²/s - g*sinθ + µ*g*cosθ]*m