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At the instant u = 60, the boys center of mass G is momentarily at rest. Determine his
Chapter 13, Problem 13-61(choose chapter or problem)
At the instant \(\theta=60^{\circ}\), the boy’s center of mass G is momentarily at rest. Determine his speed and the tension in each of the two supporting cords of the swing when \(\theta=90^{\circ}\). The boy has a weight of 60 lb. Neglect his size and the mass of the seat and cords.
Questions & Answers
QUESTION:
At the instant \(\theta=60^{\circ}\), the boy’s center of mass G is momentarily at rest. Determine his speed and the tension in each of the two supporting cords of the swing when \(\theta=90^{\circ}\). The boy has a weight of 60 lb. Neglect his size and the mass of the seat and cords.
ANSWER:
Step 1 of 7
Whenever an object moves along a curved path, there would be radial acceleration, and due to this acceleration, a radial force acts on the object. The value of this acceleration can be obtained with the help of the concept of Newton’s law.