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Watch the video vignette below, and be sure to follow any instructions when prompted during the videos. Then answerthe questions below about the concepts discussed in the video. ) The

first collision shown in the video is one between two identical carts moving at the same speed. The forces that each cart exerts on the other during the collision is plotted. What does the plot of the forces indicate? The forces that the carts exert on each other during the collision have the same magnitude but opposite directions. The directions of the forces are opposite, but the left cart exerts a greater magnitude of force on right cart than the right cart exerts on the left cart. The directions of the forces are opposite, but the right cart exerts a greater magnitude of force on the left cart than the left cart exerts on the right cart. Later in the vignette, a video of a collision between a cart with a large mass and one with a small mass is shown. Again, the forces during the collision are plotted. What does the plot of the forces indicate in this case? The forces that the carts exert on each other during the collision have both the same magnitude and direction. The forces that the carts exert on each other during the collision have the same magnitude but opposite directions. The directions of the forces are opposite, but the heavier cart exerts a greater magnitude of force on the lighter cart than the lighter cart exerts on the heavier cart. The directions of the forces are opposite, but the lighter cart exerts a greater magnitude of force on the heavier cart than the heavier cart exerts on the lighter cart. ) Consider the collision between the carts of unequal masses shown in vignette. Which of the following statements is true about the forces exerted by the carts on each other during this collision? Because of the heavier cart's greater mass, it exerts a greater force on the lighter cart. Because the lighter cart is more violently affected by the collision, it exerts a greater force on the heavier cart. O The forces are equal in magnitude and opposite in direction in this case. This is only because the masses of the two carts are unequal. The forces are equal in magnitude and opposite in direction according to Newton's third law. ) The collision between the lighter and heavier carts is shown again with a small toy figure riding on each cart.Which of the following statements is true about the different effects on the toy figures during the collision? The force each cart exerts on the other has the same magnitude, so accelerations of the two carts are also the same. However, this acceleration has a bigger effect on the lighter cart than on the heavier cart. The magnitude of the force on the lighter cart due to the heavier cart is less than the force on the heavier cart due to the lighter cart. Even though less force acts on it, the lighter cart has such a small mass that it has a greater acceleration. ) The magnitude of the force on the lighter cart due to the heavier cart is greater than the force on the heavier cart due to the lighter cart. Because the greater force acts on it, the lighter cart has the greater acceleration. The force each cart exerts on the other has the same magnitude. However, the lighter cart has a lower mass than the heavier cart, and therefore, according to Newton's second law, it has a greater acceleration than the heavier cart.

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