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Physics
Physics
Problem
A moving body has kinetic energy of
E
E
E
. How much work must be done on the body to increase its speed by a factor of three? a.
1
3
E
\frac{1}{3}E
3
1
E
b.
3
E
3E
3
E
c.
8
E
8E
8
E
d.
9
E
9E
9
E
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