Ahelicopter’s speed increases from 30 m/s to 40 m/s in 5 seconds. what is the acceleration of this helicopter? m/s2

The acceleration of this helicopter is

Explanation:

In this question the velocity changes from 30 m/sto 40 m/s in 5 seconds.

Initial velocity u=

Final velocity u=

Time t=

Acceleration is defined as the rate of change of velocity. It is given by the equation

      =

=  

=

All moving bodies aren’t necessarily accelerated. To be identified as accelerating, a body should have its velocity changing. Thus a body in uniform motion is not accelerating since its velocity is constant.

answer: b.

explanation:

i think the answer would be reserve.