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OpenStudy (anonymous):
A car has a kinetic energy of 1.9 × 103 joules. If the velocity of the car is decreased by half, what is its kinetic energy?
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OpenStudy (anonymous):
You mean \(1.9\times10^3\)(J)?
OpenStudy (anonymous):
Anyway, \(E_k=\frac{1}{2}mv^2\). Since the velocity is divided by 2, the kinetic will be divided by 4.
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