as SUPER CAR Rocket Car R has been replaced by Super Car S, which is placed on the track without any box on it. Car S was given a push to get it rolling and then the rocket engines were turned on for a short period of time. We do not know the mass of Super Car S, but do have a graph of the momentum of Car S, starting with a time when it was already rolling (but before the rocket engines were on). The graph includes all of the time when the rocket engines were on, and it includes a short time after the rocket engines we turned off again. A graph of the momentum of Super Car S as a function of time during this time period is shown below. Figure 11 Momentum as a function of time Time () Assuming the rocket engines were the source of the change in momentum in the middle of the graph, which of the following is closest to the magnitude of the average force exerted by the engines during the time when momentum was changing? 1.67 newtons 2.0 newtons 7.5 newtons 5.0 newtons None of the other answers are correct. 3.0 newtons 1.0 newtons 15 newtons 7.0 newtons

as SUPER CAR Rocket Car R has been replaced by Super Car S, which is placed on the track without any box on it. Car S was given a push to get it rolling and then the rocket engines were turned on for a short period of time. We do not know the mass of Super Car S, but do have a graph of the momentum of Car S, starting with a time when it was already rolling (but before the rocket engines were on). The graph includes all of the time when the rocket engines were on, and it includes a short time after the rocket engines we turned off again. A graph of the momentum of Super Car S as a function of time during this time period is shown below. Figure 11 Momentum as a function of time Time () Assuming the rocket engines were the source of the change in momentum in the middle of the graph, which of the following is closest to the magnitude of the average force exerted by the engines during the time when momentum was changing? 1.67 newtons 2.0 newtons 7.5 newtons 5.0 newtons None of the other answers are correct. 3.0 newtons 1.0 newtons 15 newtons 7.0 newtons

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter9: Momentum And Its Conservation

Section: Chapter Questions

Problem 69A

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