If you want to pile up sand onto a circular area of radius R. The greatest height of the sand pile that can be created without spilling the sand onto the surrounding. Area, if mu is the coefficient of friction between sand particle is:

If you want to pile up sand onto a circular area of radius R. The grea

1.	If you want to pile up sand onto a circular area of radius R. The greatest height of the sand pile that can be created without spilling the sand onto the surrounding. Area, if mu is the coefficient of friction between sand particle is:
Answer» `mu^(2) R` `MUR` R `R/mu` ANSWER :b