A 100KG barrel with a raduis of 50 cm has two ropes wrapped around it , the barrel is released from rest , causing the ropes to unwind and the barrel fall spinning toward the ground . what is the speed of the barrel after it has fallen a distance of 10m ? what is the tension in each rope ? assume that the barrels mass is uniformaly distributed and that the barrel rotates as a solid cylinder >
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Expert's answer
2020-06-22T11:12:47-0400
Apply law of conservation of energy. The moment of inertia of a solid cylinder is
I=21mr2.
The initial potential energy will convert into kinetic energy of translational and rotational motion:
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