3. A boy of mass, 25.0 kg is swinging at the park. Model the boy as a point mass on the seat of the swing. The boy moves from the lowest to highest point of his swing along a circular arc of arc length 1.31 m. The corresponding magnitude of the boy's displacement is 1.29 m with a horizontal component of 1.25 m and a vertical component of 0.335 m. (a) [5] As the boy rises from the lowest to highest point, how much work does the gravitational force do on the boy? Give a numerical answer, and justify your result either with words or equations. (b) [5 During the same motion, how much work does the seat of the swing do on the boy? Give a numerical answer, and justify your result either with words or equations.
3. A boy of mass, 25.0 kg is swinging at the park. Model the boy as a point mass on the seat of the swing. The boy moves from the lowest to highest point of his swing along a circular arc of arc length 1.31 m. The corresponding magnitude of the boy's displacement is 1.29 m with a horizontal component of 1.25 m and a vertical component of 0.335 m. (a) [5] As the boy rises from the lowest to highest point, how much work does the gravitational force do on the boy? Give a numerical answer, and justify your result either with words or equations. (b) [5 During the same motion, how much work does the seat of the swing do on the boy? Give a numerical answer, and justify your result either with words or equations.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![3. A boy of mass, 25.0 kg is swinging at the park. Model the boy as a point mass on
the seat of the swing. The boy moves from the lowest to highest point of his swing
along a circular arc of arc length 1.31 m. The corresponding magnitude of the boy's
displacement is 1.29 m with a horizontal component of 1.25 m and a vertical component
of 0.335 m.
(a) [5] As the boy rises from the lowest to highest point, how much work does the
gravitational force do on the boy? Give a numerical answer, and justify your
result either with words or equations.
(b) [5 During the same motion, how much work does the seat of the swing do on
the boy? Give a numerical answer, and justify your result either with words or
equations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb31a6e0f-4141-4dc8-a41b-cc47f24213af%2Ffd513252-b6b3-4f20-aa5e-98fd11910d71%2Fbjsjtgj.jpeg&w=3840&q=75)
Transcribed Image Text:3. A boy of mass, 25.0 kg is swinging at the park. Model the boy as a point mass on
the seat of the swing. The boy moves from the lowest to highest point of his swing
along a circular arc of arc length 1.31 m. The corresponding magnitude of the boy's
displacement is 1.29 m with a horizontal component of 1.25 m and a vertical component
of 0.335 m.
(a) [5] As the boy rises from the lowest to highest point, how much work does the
gravitational force do on the boy? Give a numerical answer, and justify your
result either with words or equations.
(b) [5 During the same motion, how much work does the seat of the swing do on
the boy? Give a numerical answer, and justify your result either with words or
equations.
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