The **momentum** is defined as the total motion possessed by a body.

Mathematically, **Momentum** = Mass x Velocity

The **momentum** is defined as the total motion possessed by a body.

Mathematically, **Momentum** = Mass x Velocity

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In Projectile

* A path, traced by a projectile in the space, is known as trajectory.

* The velocity with which a projectile is projected, is known as the velocity of projection.

* The angle, with the horizontal, at which a projectile is projected is known as angle of projection.

**Angle of projection**: Angle of projection is the angle, with the horizontal,at which the projectile is projected.

The range of projectile is **maximum**, when the angle of projection is **45 degree**.

The time of flight of a projectile on downward inclined plane depends upon angle of projection and angle of inclination of the plane.