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A 2.3-kg cart is rolling across a frictionless, horizontal track toward a 1.5-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases. At a sertain instant before the carts collide, the first cart's velocity is +4.5m/s, and the second carts velocity is -1.0 m/s
A) What is the total momentum of the system of the two carts at this instance
B) What was the velocity of the first cart when the second cart was still at rest?
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A)
The mass of the first cart = 2.3 Kg
Velocity of the first cart, at the instant of time, when the two carts collided = +4.5m/s
So, Momentum of the first cart at the time of collision = 10.35 Kg.m/s
The mass of the first cart = 1.5 Kg
Velocity of the first cart, at the instant of time, when the two carts collided = - 1.0 m/s
So, Momentum of the second cart at the time of collision = 1.5 Kg.m/s
Therefore, the total momentum of the system = ...
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