Question
A block of mass $m$ is placed on a surface having vertical crossection given by $y=x^2 / 4$. If coefficient of friction is 0.5, the maximum height above the ground at which block can be placed without slipping is:
A block of mass $m$ is placed on a surface having vertical crossection given by $y=x^2 / 4$. If coefficient of friction is 0.5, the maximum height above the ground at which block can be placed without slipping is: