s5amalisGremDarliz s5amalisGremDarliz
  • 16-01-2017
  • Mathematics
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A ball is dropped out a wimdow that is 36 feet high. how long does it take for the ball to hit the ground

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anthonysilby1
anthonysilby1 anthonysilby1
  • 16-01-2017
36 feet to metres = 10.97
first find the final velocity
vf^2 = vi^2 + 2ad
vf^2 = 0 + 2(9.81)(10.97)
vf^2 = 215.2314
vf = 14.6708

vf = vi + at
at = vf - vi
t = (vf - vi)/a
t = (14.6708)/9.81
t = 1.4955seconds
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