P2207_fall10_lecture22

# P2207_fall10_lecture22 - walks from the back to the front...

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B A C D E Where is the center of mass?
Today: Center of Mass Momentum Center of mass Center of mass

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1 kg 5 kg 5 m Where is the center of mass? A. between the masses, 2.5 m from each B. between the masses, 1 m from the small mass C. between the masses, 1 m from the large mass D. between the masses, 0.8 m from the large mass E. at the large mass

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A 9 m long boat with a mass of 100 kg floats frictionlessly on the water. The boat is initially at rest. A sailor of mass 50 kg

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Unformatted text preview: walks from the back to the front of the boat. How far does the sailor move relative to the water ? A. 9 m B. Less than 9 m C. More than 9 m A 9 m long boat with a mass of 100 kg floats frictionlessly on the water. The boat is initially at rest. A sailor of mass 50 kg walks from the back to the front of the boat. How far does the boat move relative to the water? A. 0 m B. 3 m C. 4.5 m D. 6 m...
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P2207_fall10_lecture22 - walks from the back to the front...

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