Submitted One of the more challenging elements in pa which the female figure skater, balanced on one skate, is spun in a circle by the male skater. the "death spiral" (see the figure below), in The axis of rotation of the pair is vertical and through the toe of the skate on the male skater's leg that is bent backward, the toe being planted into the ice. During the one-armed maneuver first developed in the 1940s, the outstretched arm of the male skater must apply a large force to support a significant fraction of the female skater's weight and also to provide her centripetal acceleration. This force represents a danger to the structure of the wrist of the male skater. (a) Modeling the female skater, of mass 54.0 kg, as a particle, and assuming that the combined length of the two outstretched arms is 120 cm and that arms make an angle of 45.0° with the horizontal, what is the magnitude of the force (in N) exerted by the male skater's wrist if each turn is completed in 2.00 s? 686.7 X Visualize the rotation of the skaters, and the force exerted by the male skater's arm. How does this force relate to the centripetal acceleration of the female skater? N Fm male skater's wrist (b) How does this force compare to that on one wrist of a 70.0 kg person preparing to do chin-ups by hanging from an exercise bar from the wrists? 343 X F one wrist of 70.0 kg person Visualize a person doing chin ups. When hanging straight down, how much of the person's weight is supported by each wrist?
Submitted One of the more challenging elements in pa which the female figure skater, balanced on one skate, is spun in a circle by the male skater. the "death spiral" (see the figure below), in The axis of rotation of the pair is vertical and through the toe of the skate on the male skater's leg that is bent backward, the toe being planted into the ice. During the one-armed maneuver first developed in the 1940s, the outstretched arm of the male skater must apply a large force to support a significant fraction of the female skater's weight and also to provide her centripetal acceleration. This force represents a danger to the structure of the wrist of the male skater. (a) Modeling the female skater, of mass 54.0 kg, as a particle, and assuming that the combined length of the two outstretched arms is 120 cm and that arms make an angle of 45.0° with the horizontal, what is the magnitude of the force (in N) exerted by the male skater's wrist if each turn is completed in 2.00 s? 686.7 X Visualize the rotation of the skaters, and the force exerted by the male skater's arm. How does this force relate to the centripetal acceleration of the female skater? N Fm male skater's wrist (b) How does this force compare to that on one wrist of a 70.0 kg person preparing to do chin-ups by hanging from an exercise bar from the wrists? 343 X F one wrist of 70.0 kg person Visualize a person doing chin ups. When hanging straight down, how much of the person's weight is supported by each wrist?
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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Transcribed Image Text:One of the more challenging elements in pa
which the female figure skater, balanced on one skate, is spun in a circle by the male skater.
the "death spiral" (see the figure below), in
The axis of rotation of the pair is vertical and through the toe of the skate on the male skater's leg that is bent backward,
the toe being planted into the ice. During the one-armed maneuver first developed in the 1940s, the outstretched arm of
the male skater must apply a large force to support a significant fraction of the female skater's weight and also to provide
her centripetal acceleration. This force represents a danger to the structure of the wrist of the male skater.
(a) Modeling the female skater, of mass 54.0 kg, as a particle, and assuming that the combined length of the two
outstretched arms is 120 cm and that arms make an angle of 45.0° with the horizontal, what is the magnitude of the
force (in N) exerted by the male skater's wrist if each turn is completed in 2.00 s?
686.7
Visualize the rotation of the skaters, and the force exerted by the male skater's arm. How does this force relate to the
centripetal acceleration of the female skater? N
(b) How does this force compare to that on one wrist of a 70.0 kg person preparing to do chin-ups by hanging from an
exercise bar from the wrists?
F
male skater's wrist = 343
X
F
one wrist of 70.0 kg person
Visualize a person doing chin ups. When hanging straight down, how much of the person's weight is supported by
each wrist?
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