Question

A bus travels at 6.0 m/s then comes to a complete stop in 2.0 seconds.

What is the average acceleration of the bus?

Answer 1

3 m/s² is the answer.

Step-by-step explanation:

Given:-

Speed = 6.0 m/s

Time = 2.0 s

Average acceleration = ?

Assume initial speed S(initial) as 0 as it started from rest position to movement.

Final speed of S(final) is 6

Now, we can find it,

`Average \: acceleration = (speed \: change)/(time)`

`= > Av.\: accel. = (S^(final) -S^(initial) )/(T)`

`\: \: \: \: = > ((6 - 0))/(2)`

`= > (6)/(2)`

Reducing to lowest terms,

`= > 3 \: m/ {s}^(2)`

Hence, the average acceleration of the bus is 3 m/s²