When object A collides with object B and bounces back, its final momentum is _____ its initial momentum.
A.greater than
B.less than
C.in the same direction as
D.in the opposite direction of
I think it is D...?
yes
Thanks for your help and your smarts.
To determine the relationship between the final momentum and the initial momentum when object A collides with object B and bounces back, you can use the law of conservation of momentum. This law states that the total momentum of a system remains constant before and after a collision, provided there are no external forces acting on the system.
In this case, when object A collides with object B and bounces back, the system consists of both objects A and B. Before the collision, the initial momentum of the system is the sum of the individual momenta of object A and object B. After the collision, the final momentum of the system is also the sum of the individual momenta of object A and object B.
Considering that object A bounces back, its momentum changes direction. Therefore, the final momentum of object A is in the opposite direction to its initial momentum.
Thus, the correct answer is D. The final momentum of object A is in the opposite direction of its initial momentum.