1: A 360 kg box rests on the bed of a truck that is going down a slope on a straight section of road. The truck starts down the slope with a speed of 100 km/h and slows to 60 km/h in 20 s. Assume that the acceleration is constant during this interval and calculate the strength and direction of the resultant force that must act on the box during this period of time.

2:

Two blocks are in contact on a frictionless table. A horizontal force is applied to one block as shown in Figure. 3. If m1 = 2.0 kg and m2 = 113 kg and F = 31) N, find the force of contact between the two blocks. I'J. If the same force is applied to m2 rather than to m1, do you think the force of contact is the same value derived in [a]? What is that