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Suppose you have two toy cars each has a mass of 0.04kg the cars have tape on their bumpers that will cause them to couple together one car is stopped on the track the car what is the momentum of cars?
Wiki User
∙ 11y ago
Since the mass of both cars is .04 kg and the one car is hitting the first car at a velocity of 4 m/s, you would calculate the momentum of the cars by using the Law of Conservation of Momentum (Which states that the total momentum of a moving object remains constant when interacting with another object). To calculate momentum you would find the product of mass and velocity, which the problem states.
Equation:
The mass x The velocity = The Momentum
.04 kg x 4m/s = .16 (kg m/s)
Answer: .16 (kg m/s)
Wiki User
∙ 11y ago
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momentum=mass * velocity if velocity remain unchanged, the momentum too will be halved ============================================== But wait! Haven't we all learned that momentum is conserved, and half of it doesn't just suddenly disappear ? If half of the mass of a moving object suddenly disconnects from the object and goes somewhere else, then half of the momentum must go along with that half of the mass, and the total momentum doesn't change. On the other hand, if Tinker-Bell flew by, waved her magic wand and sprinkled ferry dust on the moving object so that half of its mass truly ceased to exist, then in order to keep the total momentum constant, the object's velocity must double! The answer to the question is: No matter what happened to the massive moving object, or how it happened, total momentum doesn't change. It's the same today, tomorrow, and forever. Momentum of the total system is always conserved. If half of the mass is detached, you can't say the rest is the whole system. The whole system is together both halves. If both moving same velocity, momentum is divided. If that half stopped, half of the momentum goes to the force used to stop that.
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What is the momentum of two cars that are 0.04 kg with tape on the bumpers if one is stopped on the track and the other is traveling at a velocity of 4 miles per second?
te momentum would be 9o
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What would be the momentum if the mass were halved?
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