Physics

Grade-10

Easy

Question

# What is missing in this statement?

The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision.

The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision.

- No external unbalanced force is acting on it
- No internal balanced force is acting on it
- External balanced force is acting on it
- Internal unbalanced force is acting on it

Hint:

### Law of conservation of momentum.

## The correct answer is: No external unbalanced force is acting on it

### Law of conservation of momentum states that he sum of momenta of the two objects before collision is equal to the sum of momenta after the collision when no external unbalanced force is acting on it

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