In the figure, a 16 kg block is held in place via a pulley system. The person's upper arm is vertical; the forearm makes angle 0 = 32° with the horizontal. Forearm and hand together have a mass of 1.8 kg, with a center of mass at distance d₁ = 14 cm from the contact point of the forearm bone and the upper-arm bone (humerus). The triceps muscle pulls vertically upward on the forearm at distance d₂ = 2.0 cm behind that contact point. Distance d3 is 37 cm. Take the upward direction to be positive. What are the forces on the forearm from (a) the triceps muscle and (b) the humerus? (a) Number (b) Number i Triceps- com Humerus di Units Units < <> Block

In the figure, a 16 kg block is held in place via a pulley system. The person's upper arm is vertical; the forearm makes angle 0 = 32° with the horizontal. Forearm and hand together have a mass of 1.8 kg, with a center of mass at distance d₁ = 14 cm from the contact point of the forearm bone and the upper-arm bone (humerus). The triceps muscle pulls vertically upward on the forearm at distance d₂ = 2.0 cm behind that contact point. Distance d3 is 37 cm. Take the upward direction to be positive. What are the forces on the forearm from (a) the triceps muscle and (b) the humerus? (a) Number (b) Number i Triceps- com Humerus di Units Units < <> Block

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 37P: To get up on the roof, a person (mass 70.0 kg) places 6.00-m aluminum ladder (mass 10.0 kg) against...

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A physics student is getting some physical education, specifically doing a pushup, sohe’s supported by his feet and by his hands directly below his shoulders. At the bottomof the pushup, when his body is level, his center of mass is 39 cm from his shoulders and99 cm from his feet, and his mass is 75 kg. Find the force on his hands and the force onhis feet.
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