# Forces and Motions

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Average velocity
Average velocity= Total displacement / Total time taken
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Balanced forces- Newton's first law
A body stays at rest, or if movingit continues to move with uniform velocity, until an unbalanced force makes it behave differently.
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Unbalanced forces- Newton's second law
F= M x A
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Forces in pairs- Newton's third law
This law states that if body A exerts a force on body b, the body b exerts a force of equal size on Body A, but in the opposite direction.
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Mass and weight
Weight= M x G
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Density
Density= M / V
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Speed
Speed= D / T
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## Other cards in this set

### Card 2

#### Front

A body stays at rest, or if movingit continues to move with uniform velocity, until an unbalanced force makes it behave differently.

#### Back

Balanced forces- Newton's first law

F= M x A

### Card 4

#### Front

This law states that if body A exerts a force on body b, the body b exerts a force of equal size on Body A, but in the opposite direction.

Weight= M x G