Tommy was walking at a rate of 4 miles/hour at noon and at 12:30 pm he was walking at a brisk rate of 6 miles/hour. Two hours later Tommy was walking at a leisurely rate of 2 miles/hour. Which statement about Tommy's accleration is true?

Question

Physics

Bianca Pittman

19 July, 11:09

Tommy was walking at a rate of 4 miles/hour at noon and at 12:30 pm he was walking at a brisk rate of 6 miles/hour. Two hours later Tommy was walking at a leisurely rate of 2 miles/hour. Which statement about Tommy's accleration is true?

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Answers (1)

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Brody Casey · Answer 1

I think Tommy had a positive acceleration between noon and 12:30 pm,

That is the acceleration was (6-4) / 1/2 = 4 miles / square hour. However between 12:30 pm to 2:30 pm Tommy had a negative acceleration.