Posted by **Anne** on Friday, October 15, 2010 at 9:21pm.

Piles of snow on slippery roofs can become dangerous projectiles as they melt. Consider a chunk of snow at the ridge of a roof with a pitch of 21.

What is the minimum value of the coefficient of static friction that will keep the snow from sliding down in units uK?

- physics -
**Bill**, Tuesday, February 21, 2012 at 1:20pm
Me don't know

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