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# 1D03 CAPA SET 4...

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Physics 1D03 (Fall 2008), set #4 Main menu · Reload · Logout Current server time is Wednesday, December 10, 2008 at 16:30 Help Units · Metric Prefixes · Constants namsm Set 4, Due Mon, Oct 6, 2008 at 13:00 1 . [1 point, 10 tries] In the diagram shown below, the lower block is acted on by a force, F, which has a magnitude of 74.5 N. The coefficient of kinetic friction between the lower block and the surface is 0.290. The coefficient of kinetic friction between the lower block and the upper block is also 0.290. What is the acceleration of the lower block, if the mass of the lower block is 4.31 kg and the mass of the upper block is 2.91 kg? Answer: 5.18e+00 m/s^2 2 . [1 point, 10 tries] A block of mass M resting on a 21.8° slope is shown. The block has coefficients of friction μ s =0.694 and μ k =0.444 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 1.14 kg. What is the minimum mass M1 that will stick and not slip? Go to problem [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] 1-17 Status: Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y

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Answer: 1.12e+00 kg 3 . [1 point, 10 tries] If this minimum mass is nudged ever so slightly, it will start being pulled up the incline. What acceleration will it have? Answer:
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## This note was uploaded on 04/04/2011 for the course PHYSICS 1D03 taught by Professor N. mckay during the Spring '08 term at McMaster University.

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1D03 CAPA SET 4...

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