The only thing that definitely happens in every such case is:
The container becomes heavier.
Answer:
what is the action and reaction ?
Explanation:
Answer
given,
before collision
mass of car A = m_a = 1300 kg
velocity of car A = v_a = 35 mph
mass of car B = m_b= 1000 kg
velocity of car B = v_b = 25 mph
after collision
V_a = 30 mph
V_b = 31.5 mph
Initial momentum



final momentum



here initial momentum is equal to the final momentum of the car.
hence, momentum is conserved in the collision.
Greek philosophers Leucippus and Democritus first developed the concept of the atom in the 5th century B.C.E.