Hold two sheets of paper by adjacent corners, so that they hang downward. The sheets should be parallel and slightly separated, so that you can see the floor through the gap between them. Blow air strongly down through the gap. What happens to the sheets? (a) Nothing (b) The sheets move further apart. (c) The sheets come closer together

Linear Momentum - Product if mass and velocity of an object - ⃗ = ⃗ - SI unit: kg*m/s - A vector - The total momentum of a system of objects is the vector sum of the momenta of all the objects - ⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗ +⃗⃗⃗⃗⃗⃗⃗⃗⃗⃗ + ⋯ 1 2 3 Momentum and Newton’s Second Law ⃗ - Ʃ = ⃗ - The net force acting on an object is equal to the change in its momentum divided by the time interval during which the change occurs ⃗⃗⃗⃗ - Ʃ = Impulse - Product of force and contact time - impulse = force * time = F * t - Great force for long time equals large impulse - Same force for s