Find minimum value of the angle θ so that block of mass m does not move on rough surface. The coefficient of static friction between the block and surface whatever may be the value of applied force F.
…..(1)
N = F sinθ + mg …..(2)
By (1) and (2)
if F is ∞. Hence
⇒ cot θ = μ ⇒ θ = cot-1(μ
N = F sinθ + mg …..(2)
By (1) and (2)
if F is ∞. Hence
⇒ cot θ = μ ⇒ θ = cot-1(μ