Q.

In figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle θ with the horizontal floor. The coefficient of friction between the wall and the ladder is μ1 and that between the floor and the ladder isμ2. The normal reaction of the wall on the ladder is N1 and that of the floor is N2. If the ladder is about toslip, then

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

μ1=0μ2≠0 and N2tan⁡θ=mg2

b

μ1≠0μ2=0 and N1tan⁡θ=mg2

c

μ1≠0μ2≠0 and N2=mg1+μ1μ2

d

μ1=0μ2≠0 and N1tan⁡θ=mg2

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

If μ1=0,μ2≠0t1=0, balancing torques about AN1ℓsin⁡θ=mgcos⁡θ2; N1tan⁡θ=mg2 If μ1≠0,μ2≠0T2=0, equilibrium cannot be attained.  If μ1≠0,μ2≠0N1=t2=μ2N2;N2+t1=mgN2+μ1N1=mg; N2+μ1μ2N2=mg; N2=mg1+μ1μ2
Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
whats app icon
In figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle θ with the horizontal floor. The coefficient of friction between the wall and the ladder is μ1 and that between the floor and the ladder isμ2. The normal reaction of the wall on the ladder is N1 and that of the floor is N2. If the ladder is about toslip, then