Question

A bus decreases its speed from 80 km/h to60 km/h in 5 second find the acceleration of the bus​

Answer 1

AnsWER: u= initial velocity= 80 km/h = 22.2 m/s

v= final velocity = 60 km/h = 16.7 m/s

t= time = 5 s

a= acceleration = ?

a=v-u/t

a= 16.7-22.2/5

a= -5.5/5

Therefore, a=-1.1 m/s^2

Explanation:

Answer 2

Answer:

Explanation:

Initial speed   u=80 km/h=80×  

18

5

​  

=22.22 m/s

Final speed    v=60 km/h=60×  

18

5

​  

=16.67 m/s

Using   v=u+at

Or   16.67=22.22+α×5

⟹ a=−1.1 m/s  2