Question

A dragster going at 15 m/s increases its velocity to 25 m/s in in 2 seconds. What is its acceleration?

Answer 1

Answer:

5m/s²

Explanation:

Given parameters:

Initial velocity  = 15m/s

Final velocity  = 25m/s

Time taken  = 2s

Unknown:

Acceleration = ?

Solution:

Acceleration is the rate of change of velocity with time taken. It is mathematically expressed as;

      Acceleration  = $\frac{Final velocity - Initial velocity }{Time taken }$  

    Acceleration  = $\frac{25 - 15}{2}$   = 5m/s²