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Second Law of Motion

When a cracke...

Question

When a cracker blasts, fragments of fire will goes in all directions. Why is this so.

A

Conservation of momentum

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B

Inertia

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C

Conservation of energy

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Solution

The correct option is A
Conservation of momentum

When a cracker blast, fragments of fire will goes in all directions.

Since no net external force is acting on the system to move in that direction. To conserve the system's momentum, all the fragments will move in different directions( i.e. isolated system).

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