A18-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 21 n. starting from rest, the sled attains a speed of 1.9 m/s in 8.2 m. find the coefficient of kinetic friction between the runners of the sled and the snow.

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving