ed, and exerted re the 31 cm ball ion Axis of rotation 2.5 cm (at elbow) Triceps muscle FIGURE 8–46 Problems 35 and 36.

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. (II) 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, Fig. 8–46. The ball is accelerated uniformly
from rest to 8.5 m/s in 0.38 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 3.7 kg and rotates like a uniform rod about an axis at its end.

ed, and
exerted
re the
31 cm
ball
ion
Axis of rotation
2.5 cm
(at elbow)
Triceps
muscle
FIGURE 8–46
Problems 35 and 36.
Transcribed Image Text:ed, and exerted re the 31 cm ball ion Axis of rotation 2.5 cm (at elbow) Triceps muscle FIGURE 8–46 Problems 35 and 36.
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