Question

NOON
dy/dx is negative in the following GVF profiles:
A) MI, S2, A2
B) M2, A2, S3
C) A3, A2, M2
D) M2, A2, H2​

Answer 1

Answer:

M2 A2 H2

Step-by-step explanation:

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Answer 2

Answer:

The correct answer will be -

(D) M₂, A₂, H₂

Step-by-step explanation:

M-Curves -

It has a mild slope.

$\frac{dy}{dx} = \frac{S_0-S_E}{1-F_s^2}$

For M₁ curve - $\frac{dy}{dx} > 0$ will be positive

For M₂ curve - $\frac{dy}{dx} < 0$ will be negative

For M₃ curve - $\frac{dy}{dx} > 0$ it will be positive

S-Curves -

It has a steep slope.

For S₁ curve - $\frac{dy}{dx} > 0$ will be positive

For S₂ curve - $\frac{dy}{dx} < 0$ will be negative

For S₃ curve - $\frac{dy}{dx} > 0$  will be positive

H-Curves -

It has a Horizontal slope.

H₁ doesn't exist since there is no uniform depth.

For H₂ curve - $\frac{dy}{dx} < 0$ will be negative

For H₃ curve - $\frac{dy}{dx} > 0$ will be positive

A-Curves -

It has an adverse slope.

A doesn't exist since there is no uniform depth.

For A curve - $\frac{dy}{dx} < 0$ will be negative

For A curve - $\frac{dy}{dx} > 0$ will be positive

From this, we can see that only M₂, S₂, H₂, and A₂ are the negative GVF profiles.

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