You drop a disk (Icm = 1/2MR2) from rest. The disk rotates as it unwinds from a fixed vertical string wrapped around it. What is the disk’s translational kinetic energy after its center of mass dropped a distance H?  A. Mgh/4  B. Mgh/3  C. Mgh/2  D. Mgh

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Q: An object has an excess charge of - 2.4 * 10 ^ - 1 C. How many excess electrons does it have?

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Q: Physics Question

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.