Question

What is the acceleration of a motorcycle moving north when the speed goes from 0-80 mi/hr in 8 seconds?

Answer 1

0.003 mi/s²

Step-by-step explanation:

a = (Vf - Vi) / t

Vi = 0 (started from rest)

First you have to convert MPH into miles/sec (the problem did not state that you have to convert to meters/sec)

(80 miles/hr)/(3600 sec/hr) = 0.022 mi/sec

a = (0.022 mi/sec - 0)/8 sec = 0.003 mi/s²