Ryan and his race car Challenge Problem on Work Ryan pulls his race car with a rope from his personal car. He accelerates from rest to a speed of 25.0 km/h in 3.00 x 10 2 meters. The angle of the rope is 15.0 . with the horizontal. The mass of the race car is 682 kg. What is the work done on the race car? Draw a Free Body Diagram showing all forces acting on the race car N 150 FAX VFg 25 kml In 1 100 0m . a) What is the initial speed of the race car? O h 1 36005 / 1km b) What is the final speed of the race car? 25. OK mlh c) Convert the final speed of the race car to m/s [ Hint use the following conversion factors and your knowledge of dimensional analysis to convert the speed from km/h to m/s1000 m = 1 km, 1 hour = 60 min, 1 min = 60 s ] 6. 94 m Is d) What is the distance that the car travels? 3. 00 x 10'm e) Use your kinematic equations to determine the acceleration of the race car. v4 2 = Vo 2 + 2 a Ax f) Calculate the net Force (Fnet) ( 6 . 94 m 15) 2 = 2a (3,00x102 m) g) Calculate the Work done on the race car 3,00 x 10 m 3.00 x 10 2 m 8IN = 6 690. 42N a = 0.08 mis 9 W = Fd W2 6690. 42N ( 3. 00x102m) W = 2007126J