savagetrue38
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1. Two cars collide head on. Car A has a mass of 1500 kg and a velocity of 4m/s. Car B has a mass of 1000kg with a velocity of 3m/s, what is car A's velocity after the collision, car B has a velocity of 2m/s after the collision?

Respuesta :

fordgt1324730

(Initial momentum of Car A) + (Initial momentum of Car B) = (Final momentum of Car A) + (Final momentum of Car B)

6000 kg⋅m/s + 3000 kg⋅m/s = 1500 kg * vA + 1000 kg * 2 m/s

Simplifying the equation, we get:

9000 kg⋅m/s = 1500 kg * vA + 2000 kg⋅m/s

Subtracting 2000 kg⋅m/s from both sides of the equation:

9000 kg⋅m/s - 2000 kg⋅m/s = 1500 kg * vA

7000 kg⋅m/s = 1500 kg * vA

Dividing both sides of the equation by 1500 kg:

vA = 7000 kg⋅m/s / 1500 kg

vA = 4.67 m/s

Therefore, the velocity of Car A after the collision is approximately 4.67 m/s.

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