It is part 1b , I have already submitted 1a

Part 13: The One-Dimensional Kinematics Laboratory - Revisited In the \"One-Dimensional Kinematics\" Laboratory, you had a 500 g cart roll down an inclined plane (with a small angle of incline), and then allowed it to bounce off the bottom several times. You used a motion sensor (at the top of the ramp) to record its motion. This velocity vs. time was taken with a 50 Hz sample rate; use it for Q1 1 13. 0 40 * Run II? DID 020 * w Emu Sana ' U10 020 -U 30 7U 40 0 I 2 3 A 5 5 7 a a 10 H 12 Q11. What was the net force acting on the cart at t = 2 seconds? Q12. What was the net force acting on the cart during its rst bounce off the end of the track? (Hint: the sample rate is important information!) Q13. If you look very closely at the graph between 3.6 to 7.4 seconds, you will see that it's not a straight line i it has a kink in it. (You will see the same kink from 7.6 to 10 seconds, as well.) Draw a free-body diagram for the cart going up & going back down the track & use them to explain the kink in this graph. GOING UP TRACK GOING DOWN TRACK //