MCQ PracticeSingle Best AnswerTopic: Laws of motion
Q
In the absence of an external force, what is the algebraic sum of the momentum after a collision?
Question ID
#8497
Subchapter
Laws of motion
Action
Choose one option below
Choose Your Answer
Click an option to check whether your answer is correct.
A
Greater than the sum of the momentum before the collision ✔✖
B
Less than the sum of the momentum before the collision ✔✖
C
Equal to the sum of the momentum before the collision ✔✖
D
Unrelated to the sum of the momentum before the collision ✔✖
C
Correct Answer: C
Explanation
According to the law of conservation of linear momentum, the algebraic sum of the momentum after a collision (or any event) in the absence of an external force is equal to the sum of the momentum before the collision.