5. In an attempt to give the gym a fresh look, Adam re-arranged the free weight and cable machine equipment. Assume that Adam applied a horizontal force of 400 N, directed to the right for 1.2 seconds on a 45 kg iron plate weight (lying on the floor). The coefficient of friction between the weight and the floor on which it is sliding is 0.8.
a. What will the momentum of the weight be immediately after 1.2 seconds?
b. What impulse was exerted on the weight by the gym employee?
c. What impulse was exerted on the weight by the force of friction?
d. After 1.2 seconds, the 400 N horizontal force no longer acts on the weight. How far (in meters) will the weight continue to slide before coming to a rest