Question

- A bus starting from rest and attains a speed of 10m/s in 5 sec. Find its acceleration.

Answer 1

Answer:

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

Find out

We have to find a= acceleration = ?

Formula

v = u+at

a = v – u/t

a = 16.7 – 22.2/5

= -5.5/5

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

Answer 2

a=( v-u) /t

a=(10-0) /5

a=10/5

a=2 m/sec^2.

hope it helps you.