Question

Select One Correct Option from the following:In the figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle$\theta$ with the horizontal floor. The coefficient of friction between the wall and the ladder is $\mu_{1}$ and that between the floor and the ladder is $\mu_{2}$.The normal reaction of the wall on the ladder is $N_{1}$ and that of the floor is $N_{2}$ Ifthe ladder is about to slip, then
(A)$\mu_{1} =0,\mu_{2} \neq 0 \ and \ N_{2} tan\theta=\frac{mg}{2}$.
(B)$\mu_{1} \neq 0,\mu_{2} = 0 \ and \ N_{1} tan\theta=\frac{mg}{2}$
(C)$\mu_{1} \neq 0,\mu_{2}\neq 0 \ and \ N_{2} =\frac{mg}{1+\mu_{1}\mu_{2}}$
(D)$\mu_{1} =0,\mu_{2} \neq 0 \ and \ N_{1} tan\theta=\frac{mg}{2}$

Answer 1

c option is correct I think

Answer 2

Select One Correct Option from the following:In the figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle$\theta$ with the horizontal floor. The coefficient of friction between the wall and the ladder is $\mu_{1}$ and that between the floor and the ladder is $\mu_{2}$.The normal reaction of the wall on the ladder is $N_{1}$ and that of the floor is $N_{2}$ Ifthe ladder is about to slip, then

(A)$\mu_{1} =0,\mu_{2} \neq 0 \ and \ N_{2} tan\theta=\frac{mg}{2}$.

(B)$\mu_{1} \neq 0,\mu_{2} = 0 \ and \ N_{1} tan\theta=\frac{mg}{2}$

✔️ (C)$\mu_{1} \neq 0,\mu_{2}\neq 0 \ and \ N_{2} =\frac{mg}{1+\mu_{1}\mu_{2}}$

(D)$\mu_{1} =0,\mu_{2} \neq 0 \ and \ N_{1} tan\theta=\frac{mg}{2}$