6.15 - Exercise
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Practice Questions
Test your understanding with targeted questions
Identify the centre of mass of a uniform sphere.
💡 Hint: Think about symmetry.
Where is the centre of mass of a uniform cube?
💡 Hint: Consider the symmetry of the shape.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the centre of mass of a uniform disk?
💡 Hint: Consider the symmetry of the shape.
True or False: The angular momentum is conserved if no external torque acts on the system.
💡 Hint: Think about how external forces affect motion.
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Challenge Problems
Push your limits with advanced challenges
Calculate the centre of mass for an L-shaped lamina. How does symmetry play a role?
💡 Hint: Break it down into simpler shapes.
A child on a rotating platform extends their arms, how does it affect the system's angular speed?
💡 Hint: Think of it as balancing torque on both sides.
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Reference links
Supplementary resources to enhance your learning experience.