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Physics
Physics
Problem
Which one of the following gives the kinetic energy of a body of mass
m
m
m
moving with speed
v
v
v
? a)
m
v
2
m v^{2}
m
v
2
b)
2
m
v
2
2 m v^{2}
2
m
v
2
c)
1
2
m
v
2
\dfrac12\,m v^{2}
2
1
m
v
2
d)
1
4
m
v
2
\dfrac14 m v^{2}
4
1
m
v
2
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