a rock thrown down from a bridge has fallen 4t + 4.9t^2 meters.what is the velocity of the apple when t=3?
Answers
Answered by
0
Answer:
dont know
Step-by-step explanation:
...
Answered by
0
Answer:
10 m/s
Step-by-step explanation:
The equation is given as v
2
−u
2
=2as.
where,
v = final velocity,
u = initial velocity,
a = acceleration due to gravity, 10m/s
2
,
s = h = height traveled.
Therefore, we can find u with above info. In this case, v = 0 at the top of the path.
0−u
2
=2×10×5=10m/s.
Hence, the initial velocity of the ball was 10 m/s.
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