# SSC MTS EXAM

## SSC

### PHYSICS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
According to the law of conservation of momentum, when two objects collide in the absence of outside forces,
 A velocity decreases B velocity increases C the objects have the same momentum before and after they collide. D the objects have more momentum after they collide than they did before.
Explanation:

Detailed explanation-1: -Law of conservation of momentum: The law states, in absence of external forces the momentum of the system is conserved . It means that the total momentum before the collision is equal to the total momentum after the collision.

Detailed explanation-2: -Conservation of momentum is a fundamental law of physics, which states that the total momentum of an isolated system is conserved in the absence of an external force.

Detailed explanation-3: -A system must meet two requirements for its momentum to be conserved: The mass of the system must remain constant during the interaction. As the objects interact (apply forces on each other), they may transfer mass from one to another; but any mass one object gains is balanced by the loss of that mass from another.

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