PHY131_S08_M1_Solutions

# PHY131_S08_M1_Solutions - LAST Name: Paragon FIRST Name:...

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LAST Name: Paragon FIRST Name: Paragon PHY 131 Midterm 1 Feb 25, 2008 Version Put FULL NAME, ID#, and EXAM VERSION on the front cover of the BLUE BOOKLET! Do all problems and write and mark legibly ! Use your blue booklet for your calculations and mark your answers by filling the appropriate circles O on this sheet. Use pencil and eraser; when modifying your answer make it VERY clear what your modification is, or get a new sheet. This exam will last 50 minutes. Success! 1. Concepts (40 points). a. Vectors: indicate which quantities are vectors (V) and which are scalars (S): (correct: 1 pnt; wrong: 0 pnt) b. Assuming that a reference frame (RF) tied to the Earth is a good Inertial RF (IRF), indicate which sys- tems are good IRFs (G) and no-good IRFs (NG): (correct: 2 pnt; wrong: 0 pnt) Work velocity accelera- tion speed time Force mass Kinetic energy coefficient of friction centripetal acceleration V S V S V S V S V S V S V S V S V S V S O O O O O O O O O O O O O O O O O O O O RF tied to this lecture Hall RF tied to an working elevator RF tied to the “far stars” RF tied to a train going at constant velocity RF tied to a balloon rising at constant v G NG G NG G NG G NG G NG O O O O O O O O O O c. How many different forces are acting on a mass M, when M is: (correct: 2 pnt; wrong: 0 pnt) a block on an incline with friction a block hanging on a rope a block falling through

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## This note was uploaded on 04/23/2008 for the course PHY 131 taught by Professor Rijssenbeek during the Spring '03 term at SUNY Stony Brook.

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PHY131_S08_M1_Solutions - LAST Name: Paragon FIRST Name:...

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