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Karo-lina-s [1.5K]
2 years ago
14

If you hold your arm outstretched with palm upward, the force to keep your arm from falling comes from your deltoid muscle. assu

me that the arm has mass 4 kg and the distances and angles shown in
Physics
1 answer:
Maurinko [17]2 years ago
4 0
Your question seems to be incorrect. Please check below:

What force must the deltoid muscle provide to keep the arm in this position? By what factor does this force exceed the weight of the arm?<span>If you hold your arm outstretched with palm upward, as in (Figure 1) , the force to keep your arm from falling comes from your deltoid muscle. Assume that the arm has mass 4 kg and the distances and angles shown in (Figure 1) . 

F=? 
F/w= ?

The answer is </span><span>339 N</span><span>

</span>
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