momentum (p=mv)
Quality of motion in the moving body. Momentum is measured as a product of its own mass and velocity.The running back is a lot smaller than the defensive end. Running backs are able to run faster than a defensive end because they have more momentum and also has less mass and inertia. A punter want to kick a football with enough force to make a successful field goal or punt. a linebackers goal is to tackle the offense so they won't get a first down. momentum apples a lot while a player is running down the field. When a player runs down a field, they gain momentum A bigger player will be harder to stop than a smaller player if they are both running at they same speed. Momentum is conserved in the collision of a fullback and a linebacker is inelastic collision. A vector quality defined as the product of an objects mass and velocity. Measures how hard it is to stop a moving object. A force is exerted on an object when that object interacts with some other object in its environment. When football players tackle each other, the force created can easily over 1000 pounds. When the football is thrown in the air and is traveling at a specific speed, it always follows a curved path, do to the influence of gravity. When the football is kicked and has the left the punters foot, it is moving with a given velocity depending on the force at which it was kicked with. Tackling and Blocking rely on impulse, and conservation of momentum. When a running back is running in the open field he has a set momentum. To stop stop him a tackler must apply an impulse in the opposite direction, changing the runners momentum. In any collision between two players or tackle in which there is no initial force other than the force created by the collision.
Review Questions
1) When a mass M experiences a velocity change of v in a time of t, it experiences a force of F. Assuming the same velocity change of v, the force experienced by a mass of 2M in a time of (1/4)t is ____.
a. 2F b. 8F c. (1/2)*F d. (1/8)*F e. none of these
2) If mass and collision time are equal, then impulses are greater on objects which rebound (or bounce).
a. TRUE b. FALSE
a. 2F b. 8F c. (1/2)*F d. (1/8)*F e. none of these
2) If mass and collision time are equal, then impulses are greater on objects which rebound (or bounce).
a. TRUE b. FALSE