The contact force exerted by a body A on another body B is equal to the normal force between the bodies. We conclude that(a) the surfaces must be frictionless(b) the force of friction between the bodies is zero(c ) the magnitude of normal force equals that of friction(d) the bodies may be rough but they don't slip on each other.

The contact force exerted by a body A on another body B is equal to th

1.	The contact force exerted by a body A on another body B is equal to the normal force between the bodies. We conclude that(a) the surfaces must be frictionless(b) the force of friction between the bodies is zero(c ) the magnitude of normal force equals that of friction(d) the bodies may be rough but they don't slip on each other.
Answer» a and C are TRUE a, B and d are true b and d are true all are true ANSWER :C