Item 15 If you hold your arm outstretched with palm upward, as in (Figure 1), the...

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Item 15 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) Figure 1 ✓of 1 15° Deltoid 17 cm K 38 cm < Part A What force must the deltoid muscle provide to keep the arm in this position? Express your answer to two significant figures and include the appropriate units. F = Submit = μÀ Submit Value Units My Answers Give Up Part B By what factor does this force exceed the weight of the arm? Express your answer using two significant figures. 195| ΑΣΦ ? My Answers Give Up ? Item 15 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) Figure 1 ✓of 1 15° Deltoid 17 cm K 38 cm < Part A What force must the deltoid muscle provide to keep the arm in this position? Express your answer to two significant figures and include the appropriate units. F = Submit = μÀ Submit Value Units My Answers Give Up Part B By what factor does this force exceed the weight of the arm? Express your answer using two significant figures. 195| ΑΣΦ ? My Answers Give Up ?

Answer rating: 100% (QA)

A Mass 4 kg weight 4kg x 10ms X 40N di... View the full answer