08_InstSolManual_PDF_Part4

# 08_InstSolManual_PDF_Part4 - 8-4 Chapter 8(b The mass has...

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(b) The mass has velocity zero relative to the earth. says and The final velocity of the handcar is east. (c) says and The final velocity of the handcar is east. (d) As in part (a) the 25.0 kg mass retains its eastward velocity and momentum. The velocity of the handcar doesn’t change. The final velocity of the handcar is east. Reflect: By Newton’s third law, the force exerted on the handcar by the mass that is thrown is opposite in direction to the force on the mass. In parts (a) and (d), these forces aren’t parallel to the tracks and don’t change the speed of the handcar. In part (b), the force on the mass is west so the reaction force on the handcar is east and the handcar speeds up. In part (c), the handcar exerts a force on the mass that is east, so the reaction force on the handcar is west and the handcar slows down. 8.16. Set Up: Let be the direction the car is moving initially. Before it lands in the car the rain has no momentum along the x axis.
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• Spring '07
• Shoberg
• Force, Mass, 0.0800 M, 0.0600 M, 5 0.0600 m, 5 0.200 m

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