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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?

Respuesta :

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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