d = vt + at²/2
d = 0(4.1) + (-9.8)(4.1)²/2
d = -82 m
It is negative because this is the distance from ground level. In this case, the negative only gives its direction. Therefore, the answer is 82 m.
You drop a rock into a deep well and 4.1s later hear the splash.
How far down is the water? Neglect the travel time of the sound.
Express your answer using two significant figures.
1 answer
1 answer