Assume that a 1.00-kg ball is thrown solely by the action of the forearm, which rotates about the elbow joint under the action of the triceps muscle.

sagnuhh 2021-05-04 Answered
Assume that a 1.00-kg ball is thrown solely by the action of the forearm, which rotates about the elbow joint under the action of the triceps muscle. The ball is accelerated uniformly from rest to 10.0 m/s in 0.350 s, at which point it is released. Calculate (a) the angular acceleration of the arm, and (b) the force required of the triceps muscle. Assume that the forearm has a mass of 3.70 kg and rotates like a uniform rod about an axis at its end.

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Expert Answer

Nicole Conner
Answered 2021-05-06 Author has 28577 answers

I think the answer is
(A) \(\displaystyle{95.2}\frac{{rad}}{{s}^{{2}}}\)
(B) \(\displaystyle{9.4}\cdot{10}^{{2}}\)

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