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SashulF [63]
3 years ago
5

In a hydroelectricity production, water falls from a dam into a turbine wheel 49 m below. What is the velocity of water at the t

urbine?
A) 0 m/s
B) 15.5 m/s
C) 31 m/s
D) 46.5 m/s
Mathematics
1 answer:
svlad2 [7]3 years ago
6 0

Answer:

31m/s

Step-by-step explanation:

Using the equation of motion

v² = u² + 2gH

H is the height of fall = 49m

g is the acceleration due to gravity = 9.8m/s²

u is the initial velocity = 0m/s

v² = 0² + 2(9.8)(49)

v²  = 960.4

v = √960.4

v = 30.9m/s

v ≈ 31m/s

Hence the velocity of water at the turbine is 31m/s

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