1,292 prompts matching "Substituting values into an algebraic expression"
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Explain Back: The order in which the forces are drawn round the triangle
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Explain Back: Why the total moment about any point must be nought
I have just studied why the total moment about any point must be nought in my SS3 Further
WAEC Prep: The resultant read off an unclosed polygon
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Learn: What an unclosed polygon of forces tells you
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Practice: Finding an unknown force from a closed polygon
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WAEC Prep: Friction, and the direction in which it acts
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WAEC Prep: Calculating a moment as force times perpendicular distance
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Explain Back: The units of a moment, and why they are newton metres
I have just studied the units of a moment, and why they are newton metres in my SS3 Furthe
WAEC Prep: The resultant moment of a couple and a force together
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WAEC Prep: The moment of two equal and opposite parallel forces
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Quiz: The point about which the total moment of a set of forces vanishes
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WAEC Prep: The triangle of forces and concurrence taken together
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WAEC Prep: Using concurrence to locate an unknown line of action
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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WAEC Prep: A particle in equilibrium on a smooth inclined plane
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Explain Back: A particle hanging from two strings set at different angles
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WAEC Prep: Lami's theorem derived from the triangle of forces
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WAEC Prep: A lamp hanging from two wires, solved by Lami's theorem
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Worked Example: Matching each force to the sine of the angle opposite it
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