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3 April, 01:10

A 0.200 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.100 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction, and the speed of the 0.100 kg ball is 0.26 m/s. What is the new velocity of the first ball?

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  1. 3 April, 04:53
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    0.22m/s

    Explanation:

    The total momentum of the System is conserved. Total momentum of the system before the collision is equal to the total momentum of the system after collision. The total momentum is the sum of individual momentum of all the objects in that system.

    momentum of an object = mass * velocity

    Total Momentum before collision = 0.2*0.3 + 0.1*0.1 = 0.07 kg⋅m/s;

    Total momentum after collision = 0.1*0.26 + 0.2*x = 0.07;

    Solve for x.
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