given info is... Acceleration(a)=2.6m/s^2
final velocity(v)=26.8m/s
initial velocity(u)=24.6m/s
need to find.... time(t)=?




Explanation:
Here is the answer that would best complete the given statement above. <span>As we learn more, SCIENTIFIC THEORIES are often revised. Scientific theories are considered as the substantial explanation of some aspect of the natural world which are gathered through scientific method. Hope this is the answer that you are looking for.</span>
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Answer: D) 30</h3>
Angle of incidence always equals angle of reflection. Think of a tennis ball being hit into a wall. The ball will bounce off at the same angle that it approached with. The angles mentioned are formed through the line called the "normal", which is the line perpendicular to the surface.
It is given that the length of blade of the turbine is 58 m.
During the motion, the turbine will undergo rotational motion. Hence the radius of the circle traced by the turbine is equal to the length of the blade.
Hence radius r = 58 m.
The frequency of the turbine [f] =14 rpm.
Here rpm stands for rotation per minute.
Hence the frequency of the turbine in one second-


Here Hz[ hertz] is the unit of frequency.
The angular velocity of the turbine 
radian/second
Now we have to calculate the centripetal acceleration of the blade.
Let the linear velocity of the blade is v.
we know that linear velocity v=ωr
The centripetal acceleration is calculated as-

![=\frac{[\omega r]^2}{r}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B%5B%5Comega%20r%5D%5E2%7D%7Br%7D)

![=[1.465124]^2 *58](https://tex.z-dn.net/?f=%3D%5B1.465124%5D%5E2%20%2A58)
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