Two cars (A and B) of equal mass have an elastic collision. Prior to the collision, car A is moving at 15 m/s in the +x-direction, and car B is moving at 10 m/s in the –x-direction. Assuming that both cars continue moving along the x-axis after the collision, what will be the velocity of car A after the collision? a. same as the original 15 m/s speed, opposite direction b. equal to car B’s velocity prior to the collision c. equal to the average of the two velocities, in its original direction d. equal to the average of the two velocities, in the opposite direction
Two cars (A and B) of equal mass have an elastic collision. Prior to the collision, car A is moving at 15 m/s in the +x-direction, and car B is moving at 10 m/s in the –x-direction. Assuming that both cars continue moving along the x-axis after the collision, what will be the velocity of car A after the collision? a. same as the original 15 m/s speed, opposite direction b. equal to car B’s velocity prior to the collision c. equal to the average of the two velocities, in its original direction d. equal to the average of the two velocities, in the opposite direction
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter11: Collisions
Section: Chapter Questions
Problem 81PQ
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Two cars (A and B) of equal mass have an elastic
collision. Prior to the collision, car A is moving at 15 m/s in the
+x-direction, and car B is moving at 10 m/s in the –x-direction.
Assuming that both cars continue moving along the x-axis
after the collision, what will be the velocity of car A after the
collision?
a. same as the original 15 m/s speed, opposite direction
b. equal to car B’s velocity prior to the collision
c. equal to the average of the two velocities, in its original
direction
d. equal to the average of the two velocities, in the
opposite direction
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