Question

A bar AB of weight W rests like a ladder with upper end A against a smooth vertical wall and the lower end B on a rough horizontal plane. If the bar is just on the point of sliding, then the reaction at A is equal to (given that $\mu$ is coefficient of friction) :

• A. $\mu \, W$
• B. $W$
• C. $\frac{W}{\mu}$
• D. None of these

Answer 1

Answer: (A)

$\mu \, W$

Answer 2

Answer (a) $\mu \, W$