Question

A truck with a mass of 15,000 kg moving at 25 m/s crashes into the back of a small 1,100 kg car moving at 15 m/s. They

stick together after the collision. Calculate the momentum of the system before the collision and after the collision.

Answer 1

Step-by-step explanation:

Given that,

Mass of a truck = 15,000 kg

Speed of the truck = 25 m/s

Mass of car = 1,100 kg

Speed of the car = 15 m/s

As they stick together after the collision. Let V be the speed after the collision.

Initial momentum of the system,

`P_i=15000*25+1100*15\\\\=391500\ kg-m/s`

Final momentum of the system,

`P_f=(15000+1100)V\\\\=16100V`

Hence, this is the required solution.