http://smartphysics.com/Content/Media/Images/Mechanics/04/ThreeBlocks.pngThree b

Question

http://smartphysics.com/Content/Media/Images/Mechanics/04/ThreeBlocks.pngThree blocks, each of mass 13.0 kg are on a frictionless table. A hand pushes on the left most box (A) such that the three boxes accelerate in the positive horizontal direction as shown at a rate of a = 1.3 m/s2
What is the magnitude of the force on block A from the hand?
What is the net horizontal force on block A
What is the horizontal force on block A due to block B
What is the net horizontal force on block B
What is the horizontal force on block B due to block C

Explanation / Answer

1) magnitude of the force on block A from the hand = 3*10*0.8 = 24 N 2) net horizontal force on A = 10*0.8 = 8 N 3) horizontal force on A due to B = 24-8 = -16 N 4) net horizontal force on B = 10*0.8 = 8N 5) horizontal force on B due to C = -8N

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