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mr_godi [17]
1 year ago
14

A diagram labeled Before Collision shows two train cars moving toward each other. The car on the left is labeled m Subscript 1 B

aseline = 600 kilograms and v Subscript 1 Baseline 4 meters per second. The car on the right is labeled m Subscript 2 Baseline = 400 kilograms and v Subscript 2 Baseline negative 2 meters per second. A second drawing labeled After Collision shows two train cars moving away from each other.
Consider a system to be two train cars traveling toward each other.


What is the total momentum of the system before the train cars collide?



kg •


What must the total momentum of the system be after the train cars collide?



kg •
Physics
1 answer:
OLEGan [10]1 year ago
3 0

(a) The total momentum of the system before the train cars collide is 1,600 kgm/s.

(b) The total momentum of the system be after the train cars collide is 1,600 kgm/s.

<h3>What is the total momentum of the car system before the collision?</h3>

The total momentum of the car system before the collision is determined by applying the formula for linear momentum.

Pi = m₁u₁ + m₂u₂

where;

  • m₁ is the mass of the car on the right
  • m₂ is the mass of the car on the left
  • u₁ is the initial velocity of the right
  • u₂ is the initial velocity of the car on the left

Let the rightward direction = positive

Let the leftward direction = negative

Pi = (600 kg x 4 m/s)  +  (400 kg) x (-2 m/s)

Pi = 2,400 kgm/s  -  800 kgm/s

Pi = 1,600 kgm/s

Based on the law of conservation of linear momentum, the sum of the initial momentum of an isolated system is <u>equal</u> to the sum of the final momentum of the system

Pf = Pi = 1,600 kgm/s.

Learn more about conservation of linear momentum here: brainly.com/question/7538238

#SPJ1

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