You are watching: If an object has momentum, it must also have
From this equation you have the right to see that both the velocity of the object and the mass have an equal impact on the amount of momentum. You have much more momentum as soon as you space running than as soon as you are walking. Through the very same token, if a car and also bicycle are traveling under the street in ~ the very same velocity, the car will have an ext momentum.How to measure MomentumMomentum is commonly measured in kilograms time meters per 2nd (kg*m/s) or newton-second (N s).Momentum is a VectorBecause velocity is a vector, momentum is additionally a vector. This way that in addition to the magnitude of momentum (which is provided by p = m * v), momentum likewise has a direction. The direction of inert is presented by an arrowhead or vector.
CollisionsWhen 2 objects bump into each other, this is referred to as a collision. In physics, a collision doesn"t need to involve an accident (like two cars crashing right into each other), yet can be any kind of event where two or much more moving objects exert forces on each other for a short period of time.Examples:One ball striking one more on a pool tableA baseball bat hitting a ballYour fingers striking the vital on the keyboardCollisions and also the preservation of MomentumAn vital theory in physics is the legislation of momentum conservation. This law explains what happens to momentum once two objects collide.The law states that once two objects collide in a closeup of the door system, the total momentum of the two objects prior to the collision is the very same as the total momentum the the 2 objects after ~ the collision. The inert of each object might change, yet the complete momentum have to remain the same.Example:If a red round with a mass of 10 kg is traveling east at a rate of 5 m/s and collides with a blue ball with a fixed of 20 kg traveling west at a rate of 10 m/s, what is the result?First we number out the momentum of every ball prior to the collision:Red round = 10 kg * 5 m/s = 50 kg m/s eastBlue round = 20 kg * 10 m/s = 200 kg m/s westThe resulting momentum will be:Both balls = 150 kg m/s westNote: an item standing still has a inert of 0 kg m/s.Interesting Facts about Momentum and also CollisionsNo one is quite sure why "p" is provided for momentum. It likely came native the Latin word "petere" which means "go towards". Castle couldn"t use "m" since that was already used for mass.A adjust in momentum is referred to as impulse.An elastic collision is one in which no kinetic power is lost.An inelastic collision is one in which several of the kinetic energy of the colliding bodies is lost. This is due to the fact that the power is converted into another type of energy like warmth or sound.The recoil the a pistol is since of the conservation of momentum. The total moves earlier at a lower velocity than the bullet because of its better mass.
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