Momentum and Impulse + Vertical Motion

Momentum

The product of an object's mass and its velocity.

Linear momentum

A vector quantity with the same direction as the velocity of the object.

Newton's second law (momentum)

The net (or resultant) force acting on an object is equal to the rate of change of momentum of the object in the direction of the net force.

Impulse

The product of the resultant/net force acting on an object and the time the net force acts on the object.

Isolated system

A system on which the net external force is zero.

Conservation of momentum

The total linear momentum of an isolated system remains constant (is conserved).

Projectile

An object which has been given an initial velocity and then it moves under the influence of the gravitational force only.

Free fall

Motion during which the only force acting on an object is the gravitational force.