Show Solutions for each of the answers and the strategy u use in steps. 10. A 0.52 kg dynamics cart initially moving at 1.4 m/s [E] comes to rest after 2.8 s. Find the net force on the cart a. 0.50 N[E] b. 0.26 N[E] c. 0.26 N [W] d. 1.0 N[E] 11. The net force needed to slow down a 1600-kg truck from a velocity of 22 m/s [E] to 15 m/s [E] in 6.0 s is a. 1900 N [E] b. 9900 N [E] C. 1900 N [W] d. 9900 N [W] Part B (Putting the Concepts to Work): Using your reading, answer the following questions. Give your answer as well as your strategy for determining your answer. As part of your answer, give the page number in the reference material or the website that you used to find the answer to the question. 12. A dynamics cart of mass 0.48 kg is accelerated by a student and the acceleration recorded by a motion detector is 2.1 m/s2 [E]. What is the net force on the dynamics cart? 13. Mass A (42 kg) slides along a smooth surface and collides with mass B (28 kg) exerting a force of 53 N [E] on mass B. Find the acceleration of each object. 14. Skater A of mass 84 kg pushes with a force of 110 N [left] on skater B of mass 45 kg. Find the acceleration of each skater. 15. A net force of 130 N [E] is applied to a track by a 75-kg runner. Find the acceleration of the runner, ignoring any air resistance. A child runs from a position 12 m [E] of her father to a position 15 m [W] of her father. Conclude the displacement of the child