Bambi is walking along the train tracks when he suddenly notices a fast approaching train and freezes in his tracks like a deer in headlights. IF the 1000kg train collides with Bambi at a speed of 8 m/s, and Bambi, who weighs 75kg, gets stuck to the front of the train, how fast will the train and Bambi continue to move after the collision

Question

Selena Medina

Physics

30 August, 22:11

Bambi is walking along the train tracks when he suddenly notices a fast approaching train and freezes in his tracks like a deer in headlights. IF the 1000kg train collides with Bambi at a speed of 8 m/s, and Bambi, who weighs 75kg, gets stuck to the front of the train, how fast will the train and Bambi continue to move after the collision

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Answers (1)

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Ruth Nash · Answer 1

The final speed of the train and Bambi after collision is 7.44 m/s

Explanation:

Given;

mass of the train, m₁ = 1000kg

mass of Bambi, m₂ = 75kg

initial speed of the train, u₁ = 8 m/s

initial speed of Bambi, u₂ = 0 m/s

If Bambi gets stuck to the front of the train, then the collision is inelastic.

m₁u₁ + m₂u₂ = v (m₁ + m₂)

where;

v is the final speed of the train and Bambi after collision

Substitute the given values and solve for v

1000 x 8 + 75 x 0 = v (1000 + 75)

8000 = v (1075)

v = 8000/1075

v = 7.44 m/s

Therefore, the final speed of the train and Bambi after collision is 7.44 m/s