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20 October, 12:45

A mass of 5 kg is moving at 5 m/s when it collides with another mass of 2 kg moving in the same direction at 2 m/s. After the collision they become bonded together. What is the final velocity of the two masses together? 2.22 m/s

6.23 m/s

3.56 m/s

4.14 m/s

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  1. 20 October, 13:00
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    4.14 m/s

    Explanation:

    m¹u¹+m²u² = (m¹+m²) v

    5 (5) + 2 (2) = (5+2) v

    25+4=7v

    29=7v

    29/7=v

    v=4.14 m/s
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