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Part B: Application & Thinking Questions 1. The following velocity-time graph shows the motion of an object. Velocity (m/min) Calculate the displacement of the object in the whole trip. [APP - 4 marks] . 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 D. 12. sled 2 sled 1 Fa = ? a) Draw a free-body diagram for the system (both kids and sleds combined). [THINK - 2marks] b) Determine the force with which the mom is pulling the sleds. [APP - 3 marks]