KinematicsMedium
Question
If the water falls from a dam into a trubine wheel 19.6 m below, them the velocity of water at the turiners, is (take g = 9.8m/s2)
Options
A.9.8m/s
B.19.6m/s
C.39.2m/s
D.98.0m/s
Solution
v2 - u2 = 2as ⇒ v2 - 02 = 2 × 9.8 × 19.6
(Initial velocity =0as water falls from rest)
⇒ v =
= 2 × 9.8 = 19.6m/s
(Initial velocity =0as water falls from rest)
⇒ v =
= 2 × 9.8 = 19.6m/s
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