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M/ u^2+r =-k-y PLEASE HELP!!!!!

M/ u^2+r =-k-y PLEASE HELP!!!!!-example-1
User Majster
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1 Answer

3 votes

Answer:

(b) as marked

Explanation:

Subtract r, multiply by u^2/(-k-y-r), and take the square root.


(m)/(u^2)+r=-k-y\qquad\text{given}\\\\(m)/(u^2)=-k-y-r\qquad\text{subtract $r$}\\\\(m)/(-k-y-r)=u^2\qquad\text{multiply by $(u^2)/(-k-y-r)$}\\\\u=\pm\sqrt{(m)/(-k-y-r)}\qquad\text{take the square root}

User Rahul Tiwari
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