1. What force is needed to accelerate a sled (mass =55 kg) at 3.2 m/s^2 on horizontal frictionless ice? b.) A 50 kg woman is standing on an elevator that starts to accelerate upward at 5 m/s^2, what is the net force and normal force on the woman 2. A 10-kg box is at rest on a rough table If an applied force of 40 N is applied to box will it start moving? (Coefficient of static and kinetic friction: 0.3 and 0.22 respectively). If so, with what acceleration? 3. A 5-kg box is at rest on a rough inclined surface of 5 degrees. If the object remains stationary, what are the forces on the box on the box momentarily? (Coefficient of static and kinetic friction: 0.3 and 0.22 respectively) b.) A force of 50 N is applied up the incline? Will the box subsequently start to move, if so with what acceleration