Equilibrium in 2D (AQA A-Level Mathematics): Quizzes

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Equilibrium in 2D
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For an object in equilibrium, what is the sum of horizontal forces?

∑Fx=0\sum F_x = 0

What is the equilibrium condition for vertical forces?

∑Fy=0\sum F_y = 0

What is a static body?

An object in equilibrium

What is the first step in approaching equilibrium problems?

Identify all forces

What is the value of sin⁡30°\sin 30°?

12\frac{1}{2}

For 3D equilibrium, the sum of three force vectors equals what?

(0,0,0)(0, 0, 0)

What is the magnitude of vector (5,4,−7)(5, 4, -7)?

3103\sqrt{10}

What is true about tension in a light inextensible string?

It is the same throughout

Do equilibrium and F=ma concepts apply in 3D?

Yes, as in 2D

What is used to resolve angled forces into components?

Trigonometry (sine and cosine)

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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Forces

Newton's Second Law

Further Forces & Newton's Laws

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