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Byju's Answer
Standard XII
Physics
Second Law of Motion
if kinetic en...
Question
if kinetic energy is doubled what is the change in percentage of momentum?
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Solution
Kinetic energy is given by
1
2
m
v
2
so if kinetic energy is doubled then energy will be
2
×
1
2
m
v
2
so the new velocity will be
v
2
=
2
1
2
m
v
2
1
2
m
=
2
v
so new momentum is
P
2
=
2
m
v
and previous momentum was
P
=
m
v
so momentum will increase by
2
=
1
.
42
times
.
Hence momnetum will
increase by 41% .
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