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Post a reply || Back to Potomac Paddlers - message board Kayaking Physics: Why it is easier to roll up when lying back rather than sitting up or forward
Message: "The moment of inertia of an object about a given axis describes how difficult it is to change its angular motion about that axis. For example, consider two discs (A and B) of the same mass. Disc A has a larger radius than disc B. Assuming that there is uniform thickness and mass distribution, it requires more effort to accelerate disc A (change its angular velocity) because its mass is distributed further from its axis of rotation. Quantitatively, disc A has a larger moment of inertia than disc B." Replies to this post No replies yet |
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