Quiz7 - Physics 7B S10 Quiz 7 Last Grade: Student...

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Unformatted text preview: Physics 7B S10 Quiz 7 Last Grade: Student ID: Name: , Sec #: First 1)  A ﬂatbed truck is carrying two crates as shown in the diagram. The truck has a mass of 3000 kg. Crate A has a mass of 1000 kg. Crate B has a mass of 700 kg. The truck is acceleraEng to the leX with a=2 m/s2. The crates do not slip while the truck accelerates. A) Determine the magnitude and direcEon of the net force on Crate A. Do the same for Crate B. B A ΣFA= ΣFB= B)  Draw a force diagram for crate B. Include proper labeling and numbers. C)  Draw a force diagram for crate A. Include proper labeling and numbers. Circle forces that are third law pairs with forces you drew in part B. Useful EquaEons: ΣF = m a; Fa on b =  ­Fb on a; Fg = m g; g = 10 m / s2 ...
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