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1 year ago

Draw a surface development of a truncated cone

Engineering

1 answer:

Vanyuwa [196]1 year ago

6 0

The image of the drawing of a surface development of a truncated cone is given in the image attached.

<h3>What is truncated cone?</h3>

The term truncated cone is defined as any section of a cone or a pyramid that is said to not have a tip and it is one that ends in a plane that is often parallel to the base.

So therefore, The image of the drawing of a surface development of a truncated cone is given in the image attached.

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1 year ago

An aircraft increases its speed by 2% in straight and level flight. If the total lift remains constant determine the revised CL

damaskus [11]

Answer:

96.1%

Explanation:

We know that lift force

$F_L=\dfrac{1}{2}C_L\rho AV^2$

------------(1)

Where $C_L$ is the lift force coefficient .

ρ is the density of fluid.

A is the area.

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Now when speed is increased by 2 % and all other parameter remains constant except $C_L$ .

Let;s take new value of lift force coefficient is $C_L'$ .

$F_L=\dfrac{1}{2}C_L'\rho A(1.02V)^2$

-----------(2)

Now from equation 1 and 2

$C_L\times V^2=C_L'\times1.0404 V^2$

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So we can say that revised value of lift force coefficient is 96.1% of original value.

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