In a game of pool, a 0.4 kg cue ball is traveling at +0.80 m/s when it hits a slower striped ball moving at +0.38 m/s. after the collision, the striped ball moves off at +0.62 m/s. what is the magnitude of the final velocity of the cue ball? assume all pool balls have the same mass. a. 0.20 m/s b. 0.56 m/s c. 1.0 m/s d. 1.8 m/s

Substitute the known values:

(0.4 kg)(0.80 m/s) + (0.40 kg)(0.38 m/s) = (0.40 kg)(0.62 m/s) + (0.40 kg)(x m/s)

The value of x from the equation is: x = 0.56 m/s

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a. are