Answer to Question #228797 in Mechanics | Relativity for Abdul-Rauf

Mechanics | Relativity

Question #228797

On sensing danger two birds Va=i+4j +3k and Vb=4i+2j-4k relative to a stationary observer. How far apart are the two bird after 5secs

Expert's answer

"\\vec V=3\\vec i-2\\vec j-7\\vec k,"

"V=\\sqrt{3^2+(-2)^2+(-7)^2}=7.87~\\frac ms,"

"s=Vt=39.4~m."

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