A car slams on its brakes, coming to a complete stop in 4.0 s. The car was traveling south at 60.0 mph. Calculate the acceleration.

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(1) Answers

morganlagasse15

The answer should be 45m/s^2
vf=0
vi=60mph
t=4.0s
60mph has to be converted to seconds so there is 60 minutes in an hour and 60 seconds in a minute... so you time 60*3=180
180/4.0
45m/s^2