(A) Using the alternate form of Newton's second law, compute the force (in N) needed to accelerate a 1,210 kg car from 0 to 13 m/s in 19 s. The change in momentum is the car's momentum when traveling 13 m/s minus its momentum when going 0 m/s. (Enter the magnitude.)

(B) A runner with a mass of 82 kg accelerates from 0 to 6 m/s in 9 s. Find the net force on the runner using the alternate form of Newton's second law.

(C) A pitcher throws a 0.60 kg ball of clay at a 5.0 kg block of wood. The clay sticks to the wood on impact, and their joint velocity afterward is 1.6 m/s. What was the original speed of the clay (in m/s)?