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

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.

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Huyền Thanh 3 years 2021-08-31T18:10:20+00:00 1 Answers 8 views 0

Answers ( )

    0
    2021-08-31T18:12:02+00:00

    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\times25+1100\times15\\\\=391500\ kg-m/s

    Final momentum of the system,

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

    Hence, this is the required solution.

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