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

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Chapter12: Static Equilibrium And Elasticity
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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
Transcribed Image Text: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
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