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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Physics

Guest

12 October, 12:45

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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Tanner Brock · 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