Momentum topoc

galloping east at 15 m.s' toward a poacher. Solution: Choice of direction: East is positive. The direction of the momentum vector is the same as the direction of the velocity vector m = 1300 kg v - +15 m.s Fig 1.2: Skateboarder holding on to moving bus P = (1 300)(+15) P = +19 500 - 19 5030 kg.m.s east Checkpoint 1 Figure 13 shows some bumper cars, One of the cars has a mass of 180 kg and is carrying a 70 kg driver. It has a constant velocity of 3 mus ' west. a) Calculate the driver's momentum. b) Draw and label the driver's velocity and momentum vectors. c) Calculate the momentum of the driver bumper-car system. Fig 1.3: Bumper cars d) How would the momentum of the driver-car system change if its velocity remaine unchanged, but another person was also in the car?' Explain your answer. Topic 1: Momentum and impulse