Two blocks, both with mass m, are at rest on top of each other when a hand pushes the bottom block to the left with an unknown magnitude P. There is friction between the two blocks and between the floor and the bottom block. There is enough friction between the two blocks so that they move together to the left, with the top block about to slip to the right on the bottom block. Both blocks are observed to move a distance d. Find the magnitude of P and the speed of each block when they have moved the distance d. The knowns are m, g, and d. Do not solve this problem by finding the horizontal accelerations of the block. Hint: both block have no vertical motion during their motion, just horizontal motion.
Two blocks, both with mass m, are at rest on top of each other when a hand pushes the bottom block to the left with an unknown magnitude P. There is friction between the two blocks and between the floor and the bottom block. There is enough friction between the two blocks so that they move together to the left, with the top block about to slip to the right on the bottom block. Both blocks are observed to move a distance d. Find the magnitude of P and the speed of each block when they have moved the distance d. The knowns are m, g, and d. Do not solve this problem by finding the horizontal accelerations of the block. Hint: both block have no vertical motion during their motion, just horizontal motion.
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Transcribed Image Text:5. Two blocks, both with mass m, are at rest on top of each other when a hand pushes the bottom
block to the left with an unknown magnitude P. There is friction between the two blocks and
between the floor and the bottom block. There is enough friction between the two blocks so
that they move together to the left, with the top block about to slip to the right on the bottom
block. Both blocks are observed to move a distance d. Find the magnitude of P and the
speed of each block when they have moved the distance d. The knowns are m, g, and d. Do
not solve this problem by finding the horizontal accelerations of the block. Hint: both
block have no vertical motion during their motion, just horizontal motion.
H = 1/2
m
Llk = 1/5
hand
m
floor
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