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Byju's Answer
Standard XII
Physics
Momentum, K.E. Relation
If K.E. body ...
Question
If K.E. body is increased by
100
%
. Then
%
change in 'P'.
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Solution
Linear momentum
P
=
√
2
m
K
Final kinetic energy
K
f
=
2
K
So, final momentum
P
f
=
√
2
m
K
f
=
√
4
m
K
Percentage change in momentum
P
f
−
P
P
×
100
=
√
4
m
K
−
√
2
m
K
√
2
m
K
×
100
So,
P
f
−
P
P
×
100
=
√
4
−
√
2
√
2
×
100
=
41.4
%
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