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what is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per seconds?

Sagot :

Ryan2
[tex]E_k=\frac{1}{2}m.v^2\\ \\ E_k=\frac{1}{2}.3*20^2\\ \\ E_k=\frac{1}{2}*3*400\\ \\ \boxed{E_k=600 \ J}[/tex]
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