What drag coefficient is needed to limit a 2m by 3m board and rider weighing 200 N to 10 m/s if he is free falling off a cliff.
FD = Drag Force = mg = weight = 200 N
V= 10 m/s = velocity
A = area = (2m)*(3 m)= 6 m2
=
air density
We know the drag force formula
..................................(1)
Where C Is drag coefficient
Drag
coefficient is needed to limit =0.54
ANSWER = 0.54
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