Question

when a bomb blast why its pieces move in all direction

Answer 1

Answer:

As initial momentum of bond =0 (∵ V=0)

So, to keep final momentum =0

small exploded masses go in opposite direction to notify the effect.

i.e, M

1

V

1

=M

2

V

2

P

t

=M

2

V

2

−M

1

V

1

=0

Explanation:

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Answer 2

Answer:

If, from an aircraft, a bomb is thrown to an object placed at ground and bomb explodes before it hits the object, i.e if it explodes in the middle of its path, does it momentum remain same?

I knew that law of conservation of momentum can be used when no other forces or agents, except action and reaction, do not act between and among objects. Since in this case many kinds of chemical reactions involve, can we apply law of conservation of momentum in this case? If law of conservation of momentum cannot be applied here, what would happen? Either momentum will increase or it will decrease. But I'm not sure which may occur. Please tell me what may happen and what are the reasons behind it.

At first I thought momentum will decrease because the mass of particles created after explode of bomb will be near to zero, and the product of velocity with a large value and mass with very small value will give another value which is also near to zero. Later I started to think that my idea is not correct, because the product can be higher if the value of velocity of very small particle becomes so much higher.

Explanation:

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