Analysis IĬalculate the initial momentum of the first cart:Ĭalculate the final momentum of the first cart:Ĭalculate change in momentum of the first cart: Record the length of the collision (the time on your velocity graph during which the velocity of the cart was abruptly changing). Measure the mass of the first cart and record here:_ Record the final velocity of the two carts here:_ Record the initial velocity of the first moving cart here:_ You may use the accessory masses to adjust the masses of the carts however you prefer. Measure the velocity of a cart while it collides into another cart that was stationary. Use the velcro bumpers on the carts (or clay) so that they stick together when colliding. Provide a hypothesis about whether bouncy elastic collisions or sticky inelastic collisions will create greater forces on a cart during a collision with another cart. Search for answers to your question, explain/summarize what you learned, and cite your sources. Why do we use crumple zones even though it means that cars are more easily “totaled” during collisions? Search Existing Knowledge We build crumple zones into cars, even though it means that cars are more easily “totaled” during collisions.
IMPULSIVE FORCE MODEL MOMENTUM IN COLLISIONS LAB ANSWERS SOFTWARE
.jpg "impulsive force model momentum in collisions lab answers")
If a red ball with a mass of 10 kg is traveling east at a speed of 5 m/s and collides with a blue ball with a mass of 20 kg traveling west at a speed of 10 m/s, what is the result?įirst we figure out the momentum of each ball before the collision: The momentum of each object may change, but the total momentum must remain the same. The law states that when two objects collide in a closed system, the total momentum of the two objects before the collision is the same as the total momentum of the two objects after the collision. This law describes what happens to momentum when two objects collide. Your fingers striking the key on the keyboardĬollisions and the Conservation of MomentumĪn important theory in physics is the law of momentum conservation.One ball striking another on a pool table.In physics, a collision doesn't have to involve an accident (like two cars crashing into each other), but can be any event where two or more moving objects exert forces on each other for a short period of time. When two objects bump into each other, this is called a collision. The direction of momentum is shown by an arrow or vector. This means that in addition to the magnitude of momentum (which is given by p = m * v), momentum also has a direction.
Momentum is typically measured in kilograms times meters per second (kg*m/s) or newton-second (N s).īecause velocity is a vector, momentum is also a vector. By the same token, if a car and bicycle are traveling down the street at the same velocity, the car will have more momentum. You have more momentum when you are running than when you are walking. Where p is the momentum, m is the mass, and v is the velocity.įrom this equation you can see that both the velocity of the object and the mass have an equal impact on the amount of momentum.
0 kommentar(er)
