A 2 kg brick begins to slide over a surface which is inclined at an angle of 4 5 ∘ with respect to horizontal axis. The co-efficient of static friction between their surfaces is:

Question

TestHub · Accepted Answer

​ mg sin 45 = f L ​ mg cos 45 = N f L ​ = μ s ​ N μ s ​ = tan 45 = 1 ​ or tan θ = μ s ​ ( θ is angle of repose) tan 45 = μ s ​ = 1

Physics - NLM Question with Solution | TestHub

Options:

Doubts & Discussion