Question

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 per hour. Which statement about Tommy's acceleration is true?

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.

Answer 2

Hahahahaha hahahahahahahahahahahaha