I have the same problem i need the answer for it .
Answer:
I believe its A.. I hope I helpex
Answer: c. ability to run
Explanation:
Blood pressure B) Artery walls help to maintain pressure, even between heart<span>beats. </span>
I have attached the figure :
Based on the figure:
Net force in vertical and horizontal direction on kneecap will be 0.
∑F(horiz) = 0
<span> = 60 cos 42 = 44.58 </span>
<span>∑F(vert) = 0, </span>
<span>= 60 - 60 sin 42 = 60 - 40.148 = 19.85 </span>
F =
= 48.8