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HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Two objects collide and bounce apart.
Assuming no outside forces act on the system, which best describes the total momentum after the collision?...
A. It is always greater than it was before the collision.
B. It is often greater than it was before the collision.
C. It is always the same as it was before the collision.
D. It is often the same as it was before the collision.
Answer: C. It is always the same as it was before the collision.Explanation:Themomentum, p,of an object is defined as the product of its mass, m, and its velocity, v:p = mvThelaw of momentum conservationstates that when there are nooutside forcesthe total momentum of thesystemmust be conserved.Hence,when two objects collide and bounce apart, andno outside forces act on the system,the total momentum after the collision is always the same as it was before the collision.This is a very important fact which permits you to deal with collision problems.There are two types ofcollisions: inelastic collisions and ellastic collisions. While in elastic collisions you can use the conservation of mechanical energy to solve the problems, in inelastic collisions there is transformation of energy due to collision which implies that the mechanical energy is not conserved. Neverthelss,in both elastic and inelastic collisions, total momentum is conserved(it isthe same after as it was before the collision), as long asno outside forces act on the system....