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The 2000kg car stopped at a traffic light was hit from the rear by a truck with a mass of 18000kg both cars became tangled. If the truck is moving at a velocity of 3.0m/s to the North before the collision, what is the velocity of the entangled cars after collision

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asuwafohjames

The entangled velocity of the cars after the collision is 2.7 m/s.

What is velocity?

Velocity is the rate of change of displacement. The S.I unit of velocity is m/s.

To calculate the velocity of the entangled cars after the collision, we use the formula below.

Formula:

  • mu+MU = V(m+M).............. Equation 1

Where:

  • m = mass of the car
  • M = mass of the truck
  • u = initial velocity of the car
  • U = initial velocity of the truck.
  • V = velocity of the entangled car after the collision.

Make V the subject of the equation.

  • V = (mu+MU)/(m+M)............ Equation 2

From the question,

Given:

  • m = 2000 kg
  • M = 18000 kg
  • u = 0 m/s (at rest)
  • U = 3 m/s

Substitute these values into equation 2

  • V = [(2000×0)+(18000×3)]/(2000+18000)
  • V = 54000/20000
  • V = 2.7 m/s.

Hence, the entangled velocity of the cars after the collision is 2.7 m/s

Learn more about velocity here: https://brainly.com/question/13665920

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