A block of mass m is placed on a surface with a vertical cross section given by y = (x^3)/(6).If the coefficient of friction is 0.5, the maximum height above the ground at which the block can be placed without slipping is:

A block of mass m is placed on a surface with a vertical cross section

1.	A block of mass m is placed on a surface with a vertical cross section given by y = (x^3)/(6).If the coefficient of friction is 0.5, the maximum height above the ground at which the block can be placed without slipping is:
Answer» `1/2m` `1/6m` `2/3m` `1/3m` ANSWER :B