2a) Jeffrey sits in a chair in class. Which force is the Newton's Third Law pair for the upward contact force that the floor exerts on the chair? (Recall, Newton's 3rd law states that all forces come in pairs.) b) Two toy trucks traveling at different constant speeds are about to collide. 4 m/s 3 m/s i) The two trucks are traveling in the same direction, and truck B B has more mass than truck A. During the collision, will the magnitude (size) of the force exerted on truck A by truck B be greater than, less than, or equal to the magnitude of the force exerted on truck B by truck A? Explain your reasoning ii) During the collision, will the magnitude (size) of the acceleration of truck A be greater than, less than, or equal to the magnitude of the acceleration of truck B? Explain your reasoning.