Question

Speed of a bus changes from 80kn/h-¹ to 60km/h-¹ in 5 second.find out the acceleration​

Answer 1

Answer:

-1.111 m/s^2

Explanation:

Acceleration =$\frac{Final Velocity -Initial velocity}{Time}$

Acceleration =$\frac{60-80}{5}*\frac{5}{18}$

Acceleration = $\frac{-20}{18}$

a = -1.111 m/s^2

Answer 2

Explanation:

u=80km/h

v=60km/h

t=5sec

a=v-u/t

a=60-80/5

a= -20/5

a= -4km/h

a= -4×5/18(m/sec)

a= -1.111 m/s