Question

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

Answer 1

`\\ \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`