Answer:
2 m/s²
Explanation:
To calculate the acceleration of an object, we use the following formula:
[tex]\boxed{a = \frac{v - u}{t}}[/tex],
where:
• a = acceleration
• v = final speed
• u = initial speed, and
• t = time taken
We are told in the question that the final speed of the helicopter is 40 m/s, its initial speed is 30 m/s, and that the time it took to get from 30 m/s to 40 m/s is 5 seconds.
Therefore, using this information, as well as the formula above, we can evaluate the acceleration of the helicopter:
[tex]a = \frac{40 - 30}{5}[/tex]
[tex]= \frac{10}{5}[/tex]
[tex]= \bf 2 \: m/s^2[/tex]
So the acceleration of the helicopter is 2 m/s².
