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.

Question

Physics

Amelie Roberson

19 December, 07:43

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.

+2

Answers (1)

Know the Answer?

Joanna · Answer 1

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