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L A hand pushes two blocks, block A and block B, along a frictionless table for a distance d. The mass of block A is greater than the mass of block B (m, > m,). (mA> mg) Block A a. Draw a free-body diagram for each block. Block B Free-body diagram for block A Free-body diagram for block B frictionless table Does block A do work on block B? Does block B do work on block A? If each block does work on the other, how do the works compare in magnitude and in sign? Explain. b. How does the net force on block A compare to the net force on block B? Explain. What does your result suggest about how the net work done on block A compares to the net work done on block B? Explain. c. How do the final kinetic energies of the blocks compare? Base your answer on the work- energy theorem and your answer to part b above. d. When the hand starts to push, the blocks are moving with a speed of 2 m/s. Suppose that the work done on block A by the hand during a given displacement is 10 J. Determine the final kinetic energy of each block. Use m, = 4 kg, m, = 1 kg. Show your work.

L A hand pushes two blocks, block A and block B, along a frictionless table for a distance d. The mass of block A is greater than the mass of block B (m, > m,). (mA> mg) Block A a. Draw a free-body diagram for each block. Block B Free-body diagram for block A Free-body diagram for block B frictionless table Does block A do work on block B? Does block B do work on block A? If each block does work on the other, how do the works compare in magnitude and in sign? Explain. b. How does the net force on block A compare to the net force on block B? Explain. What does your result suggest about how the net work done on block A compares to the net work done on block B? Explain. c. How do the final kinetic energies of the blocks compare? Base your answer on the work- energy theorem and your answer to part b above. d. When the hand starts to push, the blocks are moving with a speed of 2 m/s. Suppose that the work done on block A by the hand during a given displacement is 10 J. Determine the final kinetic energy of each block. Use m, = 4 kg, m, = 1 kg. Show your work.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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L A hand pushes two blocks, block A and block B, along a frictionless table for a distance d. The mass of block A is greater than the mass of block B (m, > m,). (mA> mg) Block A a. Draw a free-body diagram for each block. Block B Free-body diagram for block A Free-body diagram for block B frictionless table Does block A do work on block B? Does block B do work on block A? If each block does work on the other, how do the works compare in magnitude and in sign? Explain. b. How does the net force on block A compare to the net force on block B? Explain. What does your result suggest about how the net work done on block A compares to the net work done on block B? Explain. c. How do the final kinetic energies of the blocks compare? Base your answer on the work- energy theorem and your answer to part b above. d. When the hand starts to push, the blocks are moving with a speed of 2 m/s. Suppose that the work done on block A by the hand during a given displacement is 10 J. Determine the final kinetic energy of each block. Use m, = 4 kg, m, = 1 kg. Show your work.
Transcribed Image Text:L A hand pushes two blocks, block A and block B, along a frictionless table for a distance d. The mass of block A is greater than the mass of block B (m, > m,). (mA> mg) Block A a. Draw a free-body diagram for each block. Block B Free-body diagram for block A Free-body diagram for block B frictionless table Does block A do work on block B? Does block B do work on block A? If each block does work on the other, how do the works compare in magnitude and in sign? Explain. b. How does the net force on block A compare to the net force on block B? Explain. What does your result suggest about how the net work done on block A compares to the net work done on block B? Explain. c. How do the final kinetic energies of the blocks compare? Base your answer on the work- energy theorem and your answer to part b above. d. When the hand starts to push, the blocks are moving with a speed of 2 m/s. Suppose that the work done on block A by the hand during a given displacement is 10 J. Determine the final kinetic energy of each block. Use m, = 4 kg, m, = 1 kg. Show your work.
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