Question: A box is pulled along the floor with a rope. The tension in the rope is 120 N and the rope makes an angle of 50 degree with respect to the ground. The coefficient of kinetic energy is µk = 0.2. The box has a mass of 40 kg, and starts from rest.
A) Draw a free-body diagram of the box.
B) Show that the normal force is 300 N.
C) Determine the velocity of the box at t = 2.0s.