Question

question 22 of 24. you drop a water balloon from a second - story window. which formula would you use to calculate the velocity of the water balloon just before it hits the ground, assuming it is in free fall? a. g = v/t b. v = gt c. v = g/t d. t = v/g

Explanation:

Step1: Identify free fall velocity formula

In free fall (initial velocity \( u=0 \)), velocity \( v \) is given by \( v = gt \), where \( g \) is gravitational acceleration and \( t \) is time.

Step2: Evaluate options

Option A (\( g=vt \)) rearranges to \( v=g/t \), incorrect (velocity increases with \( t \)). Option B (\( v=gt \)) matches the free fall velocity formula. Option C (\( v=g/t \)) is wrong (velocity ∝ \( t \)). Option D (\( t=√s \)) is not a valid free fall time formula (correct: \( t=√(2s/g) \)).

Answer:

B. v = gt