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miss Akunina [59]

2 years ago

14

Object 1 has a mass of 7.0kg and a initial velocity of 17.0 m/s. Object 2 has a mass of 8.0kg and a initial velocity of -14.0 m/

s. What are the final velocitys of each object. Please show work

1 answer:

Naily [24]2 years ago

4 0

$\\ \sf\longmapsto m1v1+m2v2=(m1+m2)v3$

$\\ \sf\longmapsto 7(17)+8(-14)=(7+8)v3$

$\\ \sf\longmapsto 119-112=15v3$

$\\ \sf\longmapsto 15v3=7$

$\\ \sf\longmapsto v3=7/15$

$\\ \sf\longmapsto v3=2.1m/s$

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