Question

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

Answer 1

40 m/s - 30 m/s = 10 m/s
10 / 5 sec. = 2m/s

Answer = 2m/s

Answer 2

2 m/s^2

Step-by-step explanation:

Acceleration of an object is given by:

`a=(v-u)/(t)`

where

v is the final velocity

u is the initial velocity

t is the time taken to accelerate from u to v

In this problem, we have:

u = 30 m/s

v = 40 m/s

t = 5 s

Substituting into the formula, we find

`a=(40 m/s-30 m/s)/(5 s)=2 m/s^2`