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What is work?
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The product of the magnitudes of the component of a force along the direction of displacement and the displacement
it is a scalar quantity in joules
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W=?
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W=Fd
or if angle is X
W=Fd(cosX)
or net force
Wnet=Fnetd(cosX)
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Kinetic energy
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Energy associated with an object in motion
KE=1/2mvv
depends on speed and mass
scalar quantity and in Joules
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Work-kinetic energy theorem
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Wnet=(delta)KE
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What is potential energy?
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Stored energy
GPE depends on height from zero level=GPE=mgh
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