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Physics
Problem
What is the expression for the change in kinetic energy of a body of mass
m
m
m
whose speed increases from
u
u
u
to
v
v
v
? a)
m
u
(
v
−
u
)
m u (v-u)
m
u
(
v
−
u
)
b)
m
(
v
2
−
u
2
)
m(v^{2}-u^{2})
m
(
v
2
−
u
2
)
c)
1
2
m
(
v
2
−
u
2
)
\dfrac{1}{2}\,m\,(v^{2}-u^{2})
2
1
m
(
v
2
−
u
2
)
d)
1
2
m
(
v
−
u
)
2
\dfrac{1}{2}\,m\,(v-u)^{2}
2
1
m
(
v
−
u
)
2
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