contestada

A 1000 kg car is traveling south at 14 m/s when it hits a stationary 900 kg car. The two cars become
attached to each other and move forward. What is the velocity after the collision?

Respuesta :

eo1613107

Answer:

from the law of conservation of momentum,

(14×1000+900×0)=(900+1000)v

14000=1900v

140/19m/s=v

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