A rectangular block has a square base measuring `axxa` and its height is `h`. It moves on a horizontal surface in a direction perpendicular to one of the edges. The coefficient of friction is `mu`. It will topple if

Options

A. `mu gt (h)/(a)`
B. `mu gt (a)/(h)`
C. `mu gt (2a)/(h)`
D. `mu gt (a)/(2h)`

Explanation

`C` : center of mass
`tau_(C)=f(h)/(2)-N(a)/(2)ge0` for toppling
`muN(h)/(2)gtN(a)/(2)`
`mugt(a)/(h)`