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Unformatted text preview: Physics 81 – Fundamental Physics 1 Lecture First Semester AY 20092010 Problems on Systems of Particles and Momentum Direction: Analyze the problems well . Solve them completely completely completely completely and neatly neatly neatly neatly in bond in bond in bond in bond papers. papers. papers. papers. Box Box Box Box your final answers. Lastly, do not forget to staple staple staple staple the papers. Thanks for the usual cooperation! Warning: I will not check solutions that are identical Warning: I will not check solutions that are identical Warning: I will not check solutions that are identical Warning: I will not check solutions that are identical/similar/copied verbatim /similar/copied verbatim /similar/copied verbatim /similar/copied verbatim with your with your with your with your classmates. classmates. classmates. classmates. By doing so, your grade for the problem set will be 0 (zero) even if you are By doing so, your grade for the problem set will be 0 (zero) even if you are By doing so, your grade for the problem set will be 0 (zero) even if you are By doing so, your grade for the problem set will be 0 (zero) even if you are the source of the the source of the the source of the the source of the solution. solution. solution. solution. You are required to answer the following questions: A.3, B.4, B.6, C.3, D.2, E.2. Submit your problem sets on August 19, 2009 (Wednesday), 13:45 pm. Late submissions will not be accepted no matter what the reason is. A. Momentum 1. A 3.00kg particle has a velocity of (3.00î  4.00ĵ) m/s. (a) Find its x and y components of momentum. (b) Find the magnitude and direction of its momentum 2. A 40.0kg child standing on a frozen pond throws a 0.500kg stone to the east with a speed of 5.00 m/s. Neglecting friction between child and ice, find the recoil velocity of the child. 3. Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them (Refer to the Figure). A cord initially holding the blocks together is burned; after this, the block of...
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 Spring '09
 tapia
 Kinetic Energy, Mass, C. Center of Mass

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