- #1
Westin
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- 0
Homework Statement
A ball whose mass is 8kg travels at a velocity [PLAIN]https://s3.lite.msu.edu/adm/jsMath/fonts/cmsy10/alpha/144/char68.png22,79,6[PLAIN]https://s3.lite.msu.edu/adm/jsMath/fonts/cmsy10/alpha/144/char69.pngm[PLAIN]https://s3.lite.msu.edu/adm/jsMath/fonts/cmmi10/alpha/144/char3D.pngs. What is the rest energy of the ball?[/B]
Homework Equations
K=1/2 mv^2[/B]
The Attempt at a Solution
K=1/2 (8) v^2
Im not sure what to do with velocity since its in vector form, I tried taking the magnitude of it but that was incorrect.[/B]
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