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Kinetic energy can be considered as the work a moving object can do, described by W = Fd. Use Newton's second law of motion (F = ma) and the motion equation vi? + v;2 = 2ad to show that KE = {mv2. (Assume
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Kinetic energy can be considered as the work a moving object can do, described by W = Fd. Use Newton's second law of motion (F = ma)

and the motion equation vi? + v;2 = 2ad to show that KE = {mv2. (Assume that the
initial velocity is 0.)

User Jgreep
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1 Answer

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vf²=vi²+2ad (vi = 0)

vf² = 2ad

1/2vf² = ad

F = m.a

W = KE = F.d

KE = m.a.d

KE = m.1/2vf²


\tt KE=(1)/(2)mv^2

User Lxuechen
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