11.7.1 - Friction Models
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Practice Questions
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What is static friction?
💡 Hint: Think about motion status.
Describe viscous friction.
💡 Hint: Connect this to speed.
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Interactive Quizzes
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What type of friction opposes the start of motion?
💡 Hint: Think of a stationary object trying to move.
True or False: Viscous friction decreases as speed increases.
💡 Hint: Consider how liquids behave.
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Challenge Problems
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A robotic hand attempts to lift an object weighing 5kg from a resting position. Calculate the initial torque if static friction is 3 Nm, and viscous friction coefficient is 1 Nm/(m/s) with a speed of 0.2 m/s.
💡 Hint: Consider static friction as constant at rest.
In a system where both static and viscous frictions must be balanced, what happens if the robot's speed exceeds the limits of these frictions? Describe and compute an example scenario.
💡 Hint: Examine how values correlate under different conditions.
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