Jack is pushing three blocks A, B and C together on a floor with a force...
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Jack is pushing three blocks A, B and C together on a floor with a force of 3mg, where g is the gravitational acceleration. The masses of the A, B, C blocks are m, 2m and 3m, respectively. The static and kinetic friction coefficients between the blocks and the floor are the same and equal to 1/3. a) Draw the force diagrams for blocks A, B and C (6 points); b) Calculate the acceleration of the blocks in terms of the gravitational acceleration g (6 points); c) Calculate the force between blocks B and C (4 points); Calculate the net force on block B in the middle (4 points). Express your results in terms of m and g. F=3mg B C 2m 3m m s = k = 1/3 Jack is pushing three blocks A, B and C together on a floor with a force of 3mg, where g is the gravitational acceleration. The masses of the A, B, C blocks are m, 2m and 3m, respectively. The static and kinetic friction coefficients between the blocks and the floor are the same and equal to 1/3. a) Draw the force diagrams for blocks A, B and C (6 points); b) Calculate the acceleration of the blocks in terms of the gravitational acceleration g (6 points); c) Calculate the force between blocks B and C (4 points); Calculate the net force on block B in the middle (4 points). Express your results in terms of m and g. F=3mg B C 2m 3m m s = k = 1/3
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