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IhelpUuHELPme:
A pitcher threw a fastball. The ball traveled 18 meters in 0.5 seconds. What was the average speed of the ball? A. 9 hours/mile B. 36 meters/second C. 9 seconds/meter D. 36 miles/hour
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Mercury:
average speed = total distance/total time = 18 m/0.5 s = ?
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