16-10-2016
Physics

contestada

From her bedroom window a girl drops a water-filled balloon to the ground, 4.60 m below. If the balloon is released from rest, how long is it in the air?

Respuesta :

umusalama2015 umusalama2015

16-10-2016

known variables
d=4.6m
initial velocity=0m/s
downward acceleration=-9.8m/s2

d=1/2gt2
4.6=1/2 -9.8 t2
t=0.93s

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