(II) Piles of snow on slippery roofs can become
Chapter 5, Problem 5.15(choose chapter or problem)
(II) Piles of snow on slippery roofs can become dangerousprojectiles as they melt. Consider a chunk of snow at theridge of a roof with a slope of 34. (a) What is the minimumvalue of the coefficient of static friction that will keep thesnow from sliding down? (b) As the snow begins to melt thecoefficient of static friction decreases and the snow finallyslips. Assuming that the distance from the chunk to the edgeof the roof is 6.0 m and the coefficient of kinetic friction is0.20, calculate the speed of the snow chunk when it slides offthe roof, (c) If the edge of the roof is 10.0 m above ground,estimate the speed of the snow when it hits the ground.
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