1,315 prompts matching "Rationalising and then simplifying fully"
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Worked Example: The weight of a body as mass times g
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Learn: Converting a weight given in kilogram-force into newtons
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Explain Back: The resultant of two forces acting in the same straight line
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Worked Example: The direction of the resultant of two forces
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Learn: The resultant of two perpendicular forces
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Learn: The component of a force along a stated direction
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Quiz: Recovering the original force from its two components
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Quiz: The magnitude of the resultant of several coplanar forces
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Explain Back: Showing that a system of concurrent forces is in equilibrium
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Explain Back: The forces acting on a body hanging from two strings
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Worked Example: Using the sine rule on the triangle of forces
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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
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Learn: Choosing the point about which to take moments
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Worked Example: Drawing the polygon of forces to scale
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Learn: What an unclosed polygon of forces tells you
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Quiz: The coefficient of friction between two surfaces
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Worked Example: The moment of a force about a point on its own line of action
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Worked Example: The total moment of three parallel forces about one end
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Learn: The algebraic sum of moments when the senses differ
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