1,333 prompts matching "Checking an inverse by working the operation both ways"
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WAEC Prep: The standard deviation of grouped data using an assumed mean
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Worked Example: The sign convention for clockwise and anticlockwise moments
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WAEC Prep: A couple, and why its moment is the same about every point
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Final Revision: A ladder leaning against a wall, and the moments acting on it
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Quiz: Relative velocity when the two motions are at right angles
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Final Revision: Interception, where one body must catch another
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Spot My Mistake: Two particles on a pulley at the top of an inclined plane
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WAEC Prep: A car towing a trailer, and the force in the tow bar
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Final Revision: The distance connected particles travel before one reaches the floor
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Explain Back: The angle of friction, and the coefficient of friction
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Common Mistakes: The work done against friction on an incline
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Final Revision: The speed of a body when it reaches the foot of an incline
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Worked Example: The acceleration of a body moving round a circle at constant speed
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Quiz: The centripetal force, and what supplies it in a given situation
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Final Revision: The period and the frequency of circular motion
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Worked Example: The amplitude, period and frequency of a simple harmonic motion
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WAEC Prep: The simple pendulum as an example of simple harmonic motion
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Common Mistakes: A particle oscillating on the end of an elastic string
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Spot my mistake: Assuming AB and BA give the same matrix
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Spot my mistake: Treating the kilogram and the kilogram weight as the same unit
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