A pitcher holds a baseball as shown below. The biceps muscle is attached to the radial bone 3.6 centimeters from the elbow joint, the forearm and hand have a combined mass of 2.4 kilograms and a combined length of 41 centimeters, and the ball has a mass of 0.146 kilograms. a. What force is exerted by the biceps muscle? Include units in your answer. More information.

University Physics Volume 3
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ISBN:9781938168185
Author:William Moebs, Jeff Sanny
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Chapter7: Quantum Mechanics
Section: Chapter Questions
Problem 7.1CYU: Check Your Understanding If a=3+4i , what is the product a* a?
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A pitcher holds a baseball as shown below.

The biceps muscle is attached to the radial bone 3.6 centimeters from the elbow joint, the forearm and hand have a combined mass of 2.4 kilograms and a combined length of 41 centimeters, and the ball has a mass of 0.146 kilograms.

a. What force is exerted by the biceps muscle? Include units in your answer. More information.


 
b. What force must be exerted by the humerus at the elbow joint to keep the arm in translational equilibrium? Include units in your answer.(Write your answer as positive if directed up, negative if directed down)





(positive if directed up, negative if directed down) 

(F is not,
shown)
ebow is
prot
F...
bicep
L/2
Mg
L/2
Transcribed Image Text:(F is not, shown) ebow is prot F... bicep L/2 Mg L/2
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