d. 78 350 5 m 2. A runner weighs 500 N. Initially his speed is 5 m/s. a. If he does 30 J of work, what is his final spee
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d. 78 350 5 m 2. A runner weighs 500 N. Initially his speed is 5 m/s. a. If he does 30 J of work, what is his final spee
d. 78 350 5 m 2. A runner weighs 500 N. Initially his speed is 5 m/s. a. If he does 30 J of work, what is his final speed? b. By how much would the runner accelerate in 7 seconds? C. How much is the power produced by his work?
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