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

5m/s²

Step-by-step 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 =
`(Final velocity - Initial velocity )/(Time taken )`

Acceleration =
`(25 - 15)/(2)` = 5m/s²