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First of all It is not a force. It is the turning effect of a force.Like force is responsible for linear acceleration of a particle, in the very same way torque is responsible angular acceleration of a particle about a given point. Linear accn is the rate of change of velocity in the same way angular accn is rate of change of angular. Now a question comes ...

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Can why gyroscopes don't fall be explained by conservation of energy? No. Now the wheel of the gyro never slows down so $\rm KE_1$ doesn't get converted into $\rm KE_2$. But then how did $\rm KE_2$ get its energy? From the gravitational potential energy lost as the gyro falls from its initial position. (The drop is small, which corresponds to the low \$\rm ...

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You might notice that when a gyroscope is released it’s centre of mass drops (a little) and so the gyroscope loses gravitational potential energy and gains kinetic energy.

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The gyroscope doesn't drop during precession. Instead it rises due to the fact that the (cross product of) angular momentum of the precession is pointed upward. So dropping providing the energy cannot be true.

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