A car traveling 25 m/s to the north collides with a car traveling 15 m/s to the south. Each car has a mass of 1100 kg. If the system is defined as the two cars, what is the change in momentum of the system due to the collision?

Question

Physics

Karen Norris

6 September, 08:10

A car traveling 25 m/s to the north collides with a car traveling 15 m/s to the south. Each car has a mass of 1100 kg. If the system is defined as the two cars, what is the change in momentum of the system due to the collision?

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Yair Lyons · Answer 1

Change in momentum of two will be (m1*v1 + m2*v2) - (m1*u1 + m2*u2)

after collision car stops so final velocities are 0.

so, (1100*25 + 1100 * (-15)), - ve sign indicates opposite directions

=11000 kg. m/s