IDK MORE POINTS BUT SAY SOMTHING FUNNY

Determine the maximum r-value of the polar equation r =3+3 cos 0

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

What is friction? how does it affect the motion of an object?