Hi.I have some confusion on this question ....here is the question(adsbygoogle = window.adsbygoogle || []).push({});

1.A(n) 2.6 kg object moving with a speed of

7.9 m/s collides with a(n) 3 kg object mov-

ing with a velocity of 7.4 m/s in a direction

56.1768◦ from the initial direction of motion

of the 2.6 kg object.What is the speed of the two objects after

the collision if they remain stuck together?

Answer in units of m/s

here is what i did but my answer out to be wrong .

Mass * velocity + Mass * velocity =( Mass +Mass)velocity

2.6 * 7.9 + 3*7.4 *cos56.1768 = (2.6 +3)v

20.54 +12.357 = 5.6v

so velocity = 5.8745 m/s

thank you.

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# Homework Help: Momentum of colliding bodies

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