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There is also no formula for tons of other cases. All the discussion here was about a specific part of the formula. And there is a formula for the moment of inertia of a spinning disk. And somewhere on that page or linked pages you can also find the formula for the energy of a spinning disk. Put both together with the angular velocity you found and you'll see the second term of your formula has a wrong prefactor.V711 said:Ok, but I don't find the formula: 1/2md²Wa²+1/2mr²(Wa−Wb)²
Kinetic energy is the energy an object possesses due to its motion.
The kinetic energy of a disk can be calculated using the formula KE = 1/2 * I * ω^2, where I is the moment of inertia and ω is the angular velocity.
The kinetic energy of a disk remains the same regardless of the number of axes it turns around. However, the direction and magnitude of the angular velocity may change, affecting the disk's rotational kinetic energy.
No, kinetic energy is always a positive quantity as it represents the energy of an object in motion. If the disk is not moving, it will have zero kinetic energy.
The kinetic energy of a disk is a type of mechanical energy, which is a form of energy that an object possesses due to its motion or position. The kinetic energy of a disk contributes to its overall mechanical energy, along with any potential energy it may have.