04-04-2017
Physics

contestada

A marathon runner starts her race at 7 miles an hour. by the end of the race, 5 hours later, her speed is 5.5 miles an hour. what is her acceleration

Respuesta :

johnsont johnsont

04-04-2017

5.5-7=-1.5 time interval would be 5 hrs.
you then take the -1.5 ÷ 5hrs = -.3

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