A mass of 5kg starts from rest and pulls down vertically on a string wound around...
A mass of 5kg starts from rest and pulls down vertically on a string wound around a disk-shaped, massive pulley. The mass of the disk is 5kg and its radius is 2 m. What is the linear speed, in m/s, after the mass drops by 0.3 m?
What's the concept here? Kinetic Energy of Rotation or are we supposed to use Torque?
If someone can help me with the concept and give me steps on how to solve this, it would be very helpful.
Thank You!
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