engineering recuitment HPCL Engineer Mock Test 2024 Engineering Mechanics Equilibrium and Friction Friction
If W is weight of a body, α is angle of an inclined plane and ϕ is angle of friction, then the force required to drag the body when it is just impending to move the plane, is_____
1
W tan(α + ϕ)
2
W cos(α + ϕ)
3
W sin(α + ϕ)
4
W sec(α + ϕ)