Question

anyone knw what is angle of contact

Answer 1

If I throw a ball at a wall, imagine the ball's movement as a function f(x). The wall is modeled in our 2D system as the line x=a. The slope tangent to the impact will be f'(a), which can be described as 1/tan(b)=f'(a) because of slope being rise over run (b is the angle of impact). Therefore, b=arctan(1/f'(a)).

Answer 2

Not sure if this is the "angle of contact" you're talking about. It's a rather general statement.

Answer 3

no its not what i asked try the qn above then if u dont knw this

Answer 4

What are you asking? Angle of contact could refer to a whole lot of things.

Answer 5

@badreferences i think he is referering to angle of contact during friction.

Answer 6

You are probably referring to angle of contact in a capillary tube. Any liquid forms a meniscus, either concave or convex(depending on the nature of the liquid).
Draw a tangent through the point of intersection of the meniscus and the tube. The angle that the tangent makes with the vertical(i.e. the length of the capillary tube) is known as angle of contact.
See the attached picture.
\[\theta\] is the angle of contact