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The following diagram represents a 3.2 kg steel ball being thrown.
2.0 cm
2am
-33 cm-
Ball
Arm
Hand
Elbow joint
Force from
triceps muscle
While the ball is in the hand, its acceleration is 5.6 ms-²
(a) Calculate the torque required to produce the observed acceleration.106
(b) Calculate the force that must be exerted by the triceps muscle in throwing the ball.

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