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OpenStudy (idku):
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OpenStudy (idku):
Blythe and Geoff are ice skating together. Blythe has a mass of 55 kg and Geoff has a mass of 81 kg. Blythe pushes Geoff in the chest when both are at rest, causing him to move away at a speed of 4.5 m/s. What is the magnitude of Blythe's speed after she pushes Geoff?
OpenStudy (idku):
Oh I figured!
OpenStudy (idku):
Their momentums are equivalent.
OpenStudy (idku):
\(m_1v_1=m_2v_2\quad \Rightarrow \quad (55)v_1=(81)(4.5)\quad \Rightarrow \quad v_1=6.63\)
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