Q19.The diagram shows the graph of force on a car against time when the car of mass 500 kg crashes into a wall without rebounding. Which one of the following statements is correct? A The area under the graph is equal to the initial momentum of the car B Momentum is not conserved in the collision C Kinetic energy is conserved in the collision D The average force exerted on the car is 10 % 10^4 N (Total 1 mark)
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The area under the force-time graph represents the impulse (change in momentum) experienced by the car during the collision. Since the car comes to a complete stop after the collision, the final momentum is 0. Therefore, the area under the graph is equal to the Show more…
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