A rectangular block $($Object B$)$ is on the ground where the coefficient of friction between the

block and the ground is $0\mathrm{.}25.$ The weight of the block is at the centre of the block. There is a

triangular loading acting against the one of vertical faces of the block. Gravity $=9\mathrm{.}81\frac{m}{s^2}.$

$($a$)$ If the height of the triangular loading is $60m.$ can the block slide or overturn?

$($b$)$ What is the maximum $Z$ to ensure that the block will not overturn or slide?

$($c$)$ Comment on the possible structure representing this set up