Answer:
a. The direction of the force on the first object is opposite to the direction of the force on the second object
b. a force upon an object causes it to accelerate according to the formula net force = mass x acceleration. So the acceleration of the object is directly proportional to the force and inversely proportional to the mass.
c. a body at rest remains at rest and a body in motion remains in uniform motion in a straight line unless acted upon by an external force.
