our teacher gave us this question *If the torque applied to a rigid body is doub
ID: 1460265 • Letter: O
Question
our teacher gave us this question *If the torque applied to a rigid body is doubled, what happens to the moment of inertia of the body? Explain. " i don't really understand rigid bodies"!
and afterward the following In the theoretical determination of the moment of inertia I new with the additional masses, it was assumed that the masses are points. Using the parallel-axis theorem, calculate the moment of inertia such that the diameter of the masses is taken into account. Determine the percentage difference between this and the previous value. Is it a valid approximation to assume that the masses are points in this particular case? " i'm not sure how can we tell if the mass is point or not and how actually i should do the calculation ??
Explanation / Answer
1) Moment of inertia is a physical quantity which depends on the mass and geometry of the body; hence, applying torque doesn't change the moment of inertia.
2) Your second quetion is unclear; see I can help you out with applicaiton of parallel axis theorem but, kindly provide the geometry (arrangement) of the two particles.
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