A 1200 kg car moving at 7.8 m/s collides with a stationary car of mass 1500 kg. if the two vehicles lock together, what is their combined velocity immediately after the collision?

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04-04-2017
Physics

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A 1200 kg car moving at 7.8 m/s collides with a stationary car of mass 1500 kg. if the two vehicles lock together, what is their combined velocity immediately after the collision?

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Аноним Аноним · Answer 1 · 2017-04-08T18:46:31+02:00

Аноним Аноним

08-04-2017

p = m₁v₁ + m₂v₂ = (m₁+ m₂)v = constant

m₁ = 1200 kg
v₁ = 7.8 m/s

m₂ = 1500 kg
v₂ = 0 m/s

Solve for v, the velocity after the collision.

according to my iPad: 3.47 m/s

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