I. Solve the following problems completely: Show your complete solution and draw the graph: 1. A 50kg body rests on the floor. The coefficients of static and kinetic friction are 0.70 and 0.50, respectively. a. What is the minimum force needed to move the body? b. If the same force continues to push the body after it starts sliding, what will be its acceleration? 2. A 30 kg block starts from rest at the top of a 30 incline and slides a distance of 2.0m down the incline in 1.50 seconds. Find, a. The magnitude of the acceleration of the block. b. The coefficient of kinetic friction between the block and plane. C. The frictional force acting on the block, and d. The speed of the block after it has slid 2.0m