consider a crash test between two identical (equal mass) cars. The cars are pull

Question

consider a crash test between two identical (equal mass) cars. The cars are pulled at the desired speeds and then crashed. There is no acceleration due to the engine, brakes, or other interactions during the collision. The two arrows show the velocities of the cars just before the collision.

V1i = 15 m/s, V2i = - 5 m/s

Below are several possible velocities for the two cars after the collision. Which of these are physically possible outcomes for the collision? There may be more than one correct answer; you must identify them all correctly for full credit.

Question 3 options:
A)
V1f = -10 m/s, V2f = 20 m/s

B)
V1f = -15 m/s, V2f = 5 m/s

C)
V1f = -5 m/s, V2f = 15 m/s

D)
V1f = 5 m/s, V2f = 5 m/s

E)
V1f = -2.5 m/s, V2f = 12.5 m/s

F)
V1f = -10 m/s, V2f = 0 m/s

G)
V1f = 0 m/s, V2f = 10 m/s

H)
V1f = 0 m/s, V2f = 0 m/s

Explanation / Answer

H) V1f = -10 m/s, V2f = 20 m/s

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