Answer:
16.8 m/s
Explanation:
To find the wind's initial velocity, we can use the formula for acceleration:
acceleration = (final velocity - initial velocity) / time
Given that the wind's final velocity is 84 m/s, the time is 5.6 s, and the acceleration is 12 m/s², we can rearrange the formula to solve for the initial velocity:
initial velocity = final velocity - (acceleration * time)
Plugging in the values:
initial velocity = 84 m/s - (12 m/s² * 5.6 s)
Simplifying the equation:
initial velocity = 84 m/s - 67.2 m/s
initial velocity = 16.8 m/s
the wind's initial velocity is 16.8 m/s.