Part B: Application & Thinking Questions 1. The following velocity-time graph shows the motion of an object. 20 Velocity (m/min) 4b Time (min) -20 Calculate the displacement of the object in the whole trip. [APP - 4 marks] 2. A mom is pulling her son and daughter who are sitting in two sleds that are connected by a rope. The mass of the girl and sled 1 is 59 kg, the mass of the boy and sled 2 is 63 kg. The mom is pulling so that the sleds accelerate at a rate of 0.32 m/s?. The coefficient of kinetic friction between the sleds and the ice is 0.12. sled 2 sled 1 a) Draw a free-body diagram for the system (both kids and sleds combined). [THINK - 2marks] 8