CAS PY 105 Study Guide - Net Force, Universal Law

Select the one that is not one of Newton's Law of motion.

A) equal and opposite reaction force acts for each action.

B) An object in uniform motion in the absence of external force continues to move in the same direction.

C) Rate of change of momentum is equal to the net force applied

D) The body has some masses attract each other with a constant force.

Define net force, external force, and system. Understand Newton's second law of motion. Apply Newton's second law of motion to determine the weight of an object. 

An object is moving with a constant velocity. Which statement istrue?

A). A constant force is being applied in the direction ofmotion

b) A constant force is being applied in the direction opposite ofmotion

c) There are no forces acting on the object

d) The net force on the object is zero

e) There is no frictional force acting on the object