A billiard ball (ball #1) moving at 5 m/s strikes a stationary ball (ball #2) of the same mass. After the collision, ball #1 moves at a speed of 4.35 m/s. Find the speed of ball #2 after the collision.
a. 1.25 m/s
b. 1.44 m/s
c. 2.16 m/s
d. 2.47 m/s
e. 2.68 m/s
Answer: d. 2.47 m/s
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