Physics, 09.01.2020 04:31 onlinebby7878
The drawing shows a model for the motion of the human forearm in throwing a dart. because of the force m applied by the triceps muscle, the forearm can rotate about an axis at the elbow joint. assume that the forearm has the dimensions shown in the drawing and a moment of inertia of 0.065 kg . m2 (including the effect of the dart) relative to the axis at the elbow. assume also that the force m acts perpendicular to the forearm. ignoring the effect of gravity and any frictional forces, determine the magnitude of the force m needed to give the dart a tangential speed of 5.0 m/s in 0.10 s. starting from rest.
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