Posted by **PCm** on Tuesday, April 23, 2013 at 11:42pm.

A 8.30 kg object with a speed of 34.0 m/s strikes a steel plate at an angle of 45.0 degrees with the normal to the plate, and rebounds at the same speed and angle on the other side of the normal. What is the change (in magnitude only) of the linear momentum of the object (in kilogram-meters/second)?

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