James and Sarah stand on a stationary cart with frictionlesswheels. The total mass of the cart and riders is 130 kg. At thesame instant, James throws a 1.0 kg ball to Sarah at 4.5 m/s, whileSarah throws a 0.50 kg ball to James at 1.0 m/s. Jamesâs throw isto the right and Sarahâs is to the left.
Part A: While the two balls are in the air, what is the speed ofthe cart and its riders?
Part B: While the two balls are in the air, what is the directionof the cart and its riders? (Choices are left, or right)
Part C: After the balls are caught, what is the speed of the cartand riders?
Part D: After the balls are caught, what are the direction of thecart and riders?
(Choices are left, right, or not moving)