Alright! So a car goes from 80 km/h to 20 km/h in 0.5 h. They want to know the acceleration in km/h2.
To Find it
equalate it
a(vf–vI)/t = (20 km/h–80 km/h)/0.5 h = –120 km/h2
Hope this helps and have a wonderful day!
Tobey
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