What is one limitation of using renewable
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It is given that the balloon fell from a height of 10 m.
So, its displacement in the vertical direction h = -10 m, because the question specifically asks us to take the upward direction as +.
Acceleration in the vertical direction
Since the balloon <em>dropped</em> from a given height, its initial velocity
Final Velocity
Using the equation
and plugging in the known values, we get [tex]V^{2} _{f} = 0 + 2(- 9.8)(- 10)
Solving this for [tex]V_{f}, we get [tex]V_{f} = 14 m/s or [tex]V_{f} = -14 m/s
Since the question is asking us for the final velocity, which faces downward direction, we choose [tex]V_{f} = -14m/s as the final answer.