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Suppose David puts a 0.50-kg rock into a sling of length 1.5 m and begins whirling the
Chapter 8, Problem 81GP(choose chapter or problem)
QUESTION:
Problem 81GP
Suppose David puts a 0.50-kg rock into a sling of length 1.5 m and begins whirling the rock in a nearly horizontal circle above his head, accelerating it from rest to a rate of 120 rpm after 5.0 s. What is the torque required to achieve this feat, and where does the torque come from?
Questions & Answers
QUESTION:
Problem 81GP
Suppose David puts a 0.50-kg rock into a sling of length 1.5 m and begins whirling the rock in a nearly horizontal circle above his head, accelerating it from rest to a rate of 120 rpm after 5.0 s. What is the torque required to achieve this feat, and where does the torque come from?
ANSWER:
Solution 81 GP
Step 1 of 2
We are required to find the torque.