Question

What is the acceleration of a bus that goes from rest to a speed of 50km/h in 10s?

Answer 1

a = (Vf - Vi) / t = (13.9 m/s - 0 m/s) / 10 s = 1.4 m/s^2

Answer 2

Acceleration of the bus is 1.38 m/s^2

Step-by-step explanation:

Given that,

Initial speed of the bus, u = 0 m/s (rest)

Final speed of the bus, v = 50 km/h

or v = 13.88 m/s

Time taken, t = 10 s

To find :

The magnitude of the acceleration of the car.

Solve :

Let a is the acceleration of the car. The rate of change of velocity is called the acceleration of the bus. Its formula is given by :

`a=(v-u)/(t)`

`a=((13.88-0)\ m/s)/(10\ s)`

`a=1.38\ m/s^2`

Therefore, the magnitude of the car's acceleration is 1.38 m/s^2.