Question

Rolling friction is

A Equal to static friction

B Greater than static friction

C Less than limiting friction

D None​

Answer 1

Answer:

D)ñó

Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects; that is, not all the energy needed for deformation of the wheel, roadbed, etc., is recovered when the pressure is removed.

Formula

F=C_{rr}N

F = force

C_{rr} = dimensionless rolling resistance coefficient

N = normal force

Answer 2

Answer:

none

Explanation:

Rolling friction is always less than static friction because in order for an object to roll the force of friction between it and surface must be large enough to keep the object from sliding. Hence rolling friction is always greater than static force.