Question

If a car is moving on a straight line with a velocity of 40 m/s and it changes its velocity to 60 m/s in 4 seconds, calculate its acceleration.

Answer 1

5m/s²

Explanation:

Given :-

• Initial Velocity = 40m/s
• Final velocity = 60 m/s
• Time = 4s

To Find :-

• The acceleration .

Solution :-

We know that the rate of change of velocity is called acceleration. Therefore ,

`\sf\implies a = v - u / t \\`

`\sf\implies a = 60m/s - 40m/s/ 4 \\`

`\sf\implies a = 20m/s / 4 \\`

`\bf\implies a = 5m/s^2`