When a ball moves from and reaches to its maximum height in 3 seconds , what is its initial velocity?
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Answered by
1
That's easy. The initial velocity of the ball upward is equal to the velocity of it as it passes the launch point on its way down. We know this from elementary Newtonian mechanics. All we must do to answer your question is to drop the ball and measure its velocity after three seconds.
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0
Answer:
data given, time t= 3 sec
from
v = u - gt
where v is final velocity
u is initial velocity
t is time
g is earth's gravity (take g =10N/Kg)
but at maximum height v = o m/s
o = u - gt
u=gt
u = 10 x 3
initial velocity, u =30m/s
Explanation:
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