Question

The equation of the straight line whose distance from the origin is 'P' and the normal ray drawn from the origin makes angle a with the positive direction of x- axis in counter clock wise direction is
1. x/a + y/b = 1
2. x cos alpha +y sin alpha = p
3. x cos alpha - y sin alpha = p
4. y= mx+c​

Answer 1

Answer:

Rolling resistance is the friction, that comes into play, when a book, kept on a collection of cylindrical pencils, is moved by pushing it. Rolling resistance, also called rolling friction or, is the force resisting the motion when a body rolls on a surface.