6.11 - DYNAMICS OF ROTATIONAL MOTION ABOUT A FIXED AXIS
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Practice Questions
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Define torque.
💡 Hint: Think about turning a doorknob.
What is moment of inertia?
💡 Hint: Consider how mass affects motion.
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Interactive Quizzes
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What does torque do?
💡 Hint: Think about how you open a door.
If I increase the moment of inertia of a body, what happens to the angular acceleration?
💡 Hint: Consider how mass affects linear motion.
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Challenge Problems
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With a moment of inertia of 30 kg m², calculate the angular acceleration when a torque of 60 N m is applied.
💡 Hint: Rearranging the torque formula is crucial.
A rotating disk with a radius of 0.5 m is applying a torque of 10 N m. Find the angular velocity after 4 seconds if it starts from rest.
💡 Hint: Work through torque, moment of inertia, then kinematic equations.
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