A ball of mass 7.0 g with a speed of 25.2 m/s strikes a wall at an angle 23.0 ° and then rebounds with the same speed and angle. It is in contact with the wall for 39.0 ms. What is the magnitude of the impulse associated with the collision force?(adsbygoogle = window.adsbygoogle || []).push({});

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x: -mv*sin(23)-mv*sin(23)

y: -mv*cos(23)+mv*cos(23)=0

I'm not sure what I did wrong, but I got -137.85, and the magnitude is 137.85/

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# Homework Help: 2-dimensional impuse

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