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October 21, 2014

Homework Help: physics

Posted by Michelle on Friday, January 25, 2013 at 9:27pm.

Suppose a 28.5 kg object is moving at 38.4 m/s along the x-axis just before it strikes a stationary 13.0 kg object. After the collision, the 28.5 kg object is moving with a velocity of 20.0 m/s at an angle of 5.79 degrees relative to the x-axis. What is the magnitude of the new velocity of the 13.0 kg object just after collision? (Hint: In order to solve this problem you will have to consider conservation of momentum in both the x-direction and the y-direction.)

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