Q. A mule uses a rope to pull a box that weighs 3x10^2N across a level surface with a constant velocity. The rope makes an angle of 3 degrees above horizontal and the tension in the rope is 1x10^2N. What is the normal force on the floor on box?

Q. A car starts from rest and moves along a straight line with an acceleration of a = (3s -1/3) m/s2, where s is in meters. Resolve the car's velocity and position when t = 10 s.