Linear Momentum

Linear momentum of a body is the quantity of motion contained in the body.
• It is measured in terms of the force required to stop the body in unit time.
• It is measured as the product of the mass of the body and its velocity, i.e., momentum = mass Ã— velocity.
• If a body of mass m is moving with velocity , then its linear momentum  is given by .
• Linear momentum is a vector quantity and its direction is the same as the direction of velocity of the body.
• If two objects of different masses have same momentum, the lighter body possesses greater velocity.

= constant

âˆ´  i.e.,     [As p is constant]