A person holds a 1.42 N baseball in his hand; a distance of 34.0 cm from
the elbow joint.  The biceps, attached at a distance of 2.75 cm from the
elbow exerts just enough upward force on the forearm to keep the system in
static equilibrium.  Consider the forearm and hand to be a uniform rod
with a mass of 1.20 kg.
<ol type="a">
<li> Determine the force exerted by the biceps.
<li> Is the force exerted by the biceps more than, less than, or equal
to the combined weight of the forearm, hand and baseball?  Explain.
</ol>
<center>
<img src="images/W2-f11026.gif" height="200" width="300">
</center>