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

7"" ms^-2

Explanation:

Let acceleration be color(indigo)(" "a)
Initial velocity be color(indigo)(" " u)
Final velocity be color(indigo)(" "v)

u=25ms^-1

v=60ms^-1

In newtonian physics

a=(v-u)/t" or " (Deltav)/(Deltat)

a=(60-25)/5

a=35/5=7ms^-2

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..