COLLEGE PHYSICS
2nd Edition
ISBN: 9781711470832
Author: OpenStax
Publisher: XANEDU
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Question
Chapter 9, Problem 18PE
To determine
(a)
The force exerted by his right hand.
To determine
(b)
The force exerted by his left hand.
To determine
(c)
Whether the condition of static equilibrium is satisfied or not.
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Students have asked these similar questions
In the figure below, the CG of the pole held by the pole vaulter is 2.04 m from the left hand, and the hands are 0.713 m apart. (Assume the vaulting pole has a mass of 2.52 kg.)
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In Figure shown, the cg of the pole held by the pole vaulter is 2.00 m from the left hand, and the hands are 0.700 m apart. Calculate the force exerted by (a) his right hand and (b) his left hand. (c) If each hand supports half the weight of the pole in Figure shown , show that the second condition for equilibrium (net τ = 0) is satisfied for a pivot other than the one located at the center of gravity of the pole. Explicitly show how you follow the steps in the Problem-Solving Strategy for static equilibrium described above.
John is performing an isometric contraction of the quadriceps to hold a 500 N weight at an angle of 45° of knee extension (i.e., 45° below the horizontal). Assume the length of the lower leg is 42.5 cm. How much force must the quadriceps produce if the moment arm for the patellar tendon is 10 mm?
Chapter 9 Solutions
COLLEGE PHYSICS
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