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A body in free fall reaches the ground in 5 secondswhat is the finalvelocity?
Wiki User
∙ 13y ago
*as we know from the question
t=5 sec
*also we know acceleration of freely falling body is equal to gravitational acceleration(g=9.8m/sec)
* initial velocity of body is equal to zero
SOLUTION;
using eq.
S=ViT+1/2 AT2
we get S=122.5m
now using S=VfT
Vf=S/T
we get FINAL VELOCITY i.e 24.5 m/sec
Wiki User
∙ 13y ago
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