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OpenStudy (anonymous):
An object with mass of 2 kg is moving along a horizontal surface with a velocity components vx= 5m/s and vy= -2.5m/s. What is the objects speed? What is its kinetic energy?
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OpenStudy (anonymous):
hi\[v=\sqrt{(v _{x}^{2}+v _{y}^{2})}\]\[k=(1/2)mv^2\] v in KE formula is total v
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