Question

a bus decrease its speed from 80 km/h to 60 km/h in 5 sec. find its acceleration.

Answer 1

Here you your solution 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 If you are satisfied them mark it as brainiliest

Answer 2

initial velocity, u = 80km / h
=80× 1000 / 60 × 60
=22.22
final velocity, v=60 km /h
=60×1000/60×60
=16.66
time, t= 5s
so,acceleration , a=v-u÷t
=16.66-22.22÷5
= -5.56÷5
= -1.112