Version A Name: Block: 4. A 4 0 kg block is initially at rest. Then, it is pulled 2 m by a rope with constant tension of 20 N as shown below. The coefficient of kinetic friction, pa between the block and the surface it slides upon is 0.50 (use g=10 m/s's). a. Add all remaining forces acting on the block to the diagram b. What work is done by the pulling force? c. What work is done by friction? d. What is the power developed by the pulling force if the 2 m is covered in 2 seconds? 5. Jared throws a 1 kg rubber ball down from a height of 3 m at-2.0 m/s (use g=10 m/s/s). a. What is the speed of the ball after it falls 3.0 meters (ignore air resistance)? b. The rubber ball has spring constant of 64 N/m, how much will it compress when it hits the ground (assume all kinetic energy goes into spring potential)? 6. A basketball player makes a jump shot. The 2 kg ball is released at a height of 2 m above the floor with a speed of 5 m/s. The ball goes through the net 3 m above the floor at a speed of 2 m/s. What is the work done by air resistance, an external force? (use g=10 m/s/s) a. Set up the correct equation b. List all given variables with correct values c. Correct substitutions into the equation d. Algebra to solve for work