A helicopter’s speed increases from 25 m/s to 60 m/s in 5 seconds. What is the acceleration of this
helicopter?
To calculate the acceleration of the helicopter, we can use the formula:
Acceleration (a) = (Change in velocity)/(Change in time)
In this case, the change in velocity is the final velocity (60 m/s) minus the initial velocity (25 m/s), and the change in time is 5 seconds.
Substituting the values into the formula, we get:
Acceleration (a) = (60 m/s - 25 m/s) / 5 s
Simplifying the equation, we have:
Acceleration (a) = 35 m/s / 5 s
Finally, evaluating the expression, we find:
Acceleration (a) = 7 m/s²
Therefore, the acceleration of the helicopter is 7 m/s².
acceleration = rate of change of velocity = change in velocity / time
= (60 - 25) / 5 m/s^2