the kinetic energy of a body of mass 2kg is 100J. calculate it's momentum
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Answer:
Kinetic energy=1/2mv
2
And momentum=mv
As both the unit is in SI.
So,
momentum
K.E
=
mv
2
1
mv
2
=
2
1
v
2
1
v=
20
100
=5
v=10m/s
As given, momentum=mv=20 kg.m/s
m∗10=20
m=2kg
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