Question

car decreases its speed from 60km/h to 40km/h then what is its acceleration ?

Answer 1

ans;

0.275 m/s^2

explanation;

initial velocity= 60km/hr which is 60 X 5/18 =16.6 m/s

final velocity= 40km/hr which is 40 X 5/18 = 11.1 m/s

avg. acceleration: 11.1-16.6/2= 5.5/2 = 0.275m/s^2

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