A sled of mass 50.0 kilogram is pulled along flat, snow-covered ground. The static friction coefficient is 0.30, and the kinetic friction coefficient is 0.10.
a) Determine what does the sled weigh?
b) Determine what force will be needed to start the sled moving?
c) Find what force is needed to keep the sled moving at a constant velocity?
d) Once moving, determine what total force must be applied to the sled to accelerate it at 3.0 m/s^2.