If there were no air resistance, how long would it take a free-falling skydiver to fall from a plane at 3500 m to an altitude of
400 m , where she will pull her ripcord?
1 answer:
By equation of motion we have S = ut + 0.5 a
Where u = Initail velocity, S= dispalcement, t = time taken, a = acceleration
Here S = 3500-400 = 3100m, u = 0m/s, g = 9.8 m/
So, 3100 = 0+0.5*9.8*
= 3100/4.9
t =
t = 25.15 seconds
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