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Statement of a problem № 2539

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A 16-g mass is moving in the +x-direction at 30 cm/s while a 4.0-g mass is moving in the x-direction at 50 cm/s. They collide head on and stick together. Find their velocity after the collision.

Solution:
A 16-g mass is moving in the +x-direction at 30 cm/s while a 4.0-g mass is movin

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