A 1200 kg car moving at 15.6 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?

Question

Quizplus · Accepted Answer

The law of conservation of momentum states that the total momentum before the collision is equal to the total momentum after the collision. The initial momentum is (1200 kg * 15.6 m/s) + (1500 kg * 0 m/s) = 18720 kg*m/s. After the collision, the combined mass is 2700 kg. Solving for velocity: 18720 kg*m/s = 2700 kg * v, gives v = 6.9 m/s.

A 1200 Kg Car Moving at 15