# A helicopter’s speed increases from 25 m/s to 60 m/s in 5 seconds. What is the acceleration of this helicopter?

##### 1 Answer

Mar 13, 2018

#### Answer:

#### Explanation:

Let acceleration be

Initial velocity be

Final velocity be

**In newtonian physics**

**In modern physics**

we need to consider time dilation.

since the velocities are too small the results would be same to more than 5 decimal places..