A 2kg snowball moving at 22 m/s collides with a 7kg snowman's head. The snowball sticks to the snowman's head knocking it off. How much mass does the combined object have after the collision? How fast is the combined object moving at after the collision?

asked by Zar

11 years ago

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1 answer

m₁v =(m₁+m₂)u
u= m₁v/(m₁+m₂)=2•22/(2+7)=4.9 m/s

answered by Elena

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Question

A 2kg snowball moving at 22 m/s collides with a 7kg snowman's head. The snowball sticks to the snowman's head knocking it off. How much mass does the combined object have after the collision? How fast is the combined object moving at after the collision?

1 answer

m₁v =(m₁+m₂)u
u= m₁v/(m₁+m₂)=2•22/(2+7)=4.9 m/s

Elena · Answer

m₁v =(m₁+m₂)u u= m₁v/(m₁+m₂)=2•22/(2+7)=4.9 m/s