Question

A bus decreases its speed from 80 km/ hr to 60 km/ hr in 5 socond .find the acceleration of the bus.​

Answer 1

Step-by-step explanation:

Given that U= initial velocity= 80 km/h = 22.2 m/s

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

t= time = 5 s

We have to find a= acceleration = ?

v = u+at

a = v – u/t

a = 16.7 – 22.2/5

= -5.5/5

Therefore, acceleration a = -1.1 m/s^2

The negative sign implies that the velocity is decreasing.