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Byju's Answer
Standard XII
Physics
Displacement of COM:Application
a bomb of mas...
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a bomb of mass 3 kg at rest
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Q.
A bomb of mass
3
k
g
, initially at rest, explodes into two parts of
2
k
g
and
1
k
g
. The
2
k
g
mass travels with a velocity of
3
m
/
s
. At what velocity will the
1
k
g
mass travel?
Q.
Two blocks of masses of
3
kg and
6
kg rest on a horizontal smooth surface. The
3
kg block is attached to a spring with a force constant
k
=
900
N
m
−
1
which is compressed
2
m beyond the equilibrium position. The
6
kg mass is at rest at
1
m from mean position,
3
kg mass strikes the
6
kg mass and the two stick together
Q.
A bomb of mass
9
kg initially at rest explodes into two pieces of mass
3
kg and
6
kg. If the kinetic energy of
3
kg mass is
216
J, then the velocity of
6
kg mass will be?
Q.
A sphere of mass
m
1
=
2
k
g
collides with a sphere of mass
m
2
=
3
k
g
which is at rest. Mass
m
1
will move at right angle to the line joining centres at the time of collision, if the coefficient of restitution is
Q.
If a ball of mass
0.4
k
g
moving with a velocity of
3
m
s
−
1
collides elastically with another ball of mass
0.6
k
g
which is at rest,Their velocities after collision will be
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