What is the relationship between momentum and kinetic energy? between kinetic energy and impact?
87546
Momentum is double the kinetic energy. You can put it in the formulas of these 2 & then solve. p(linear momentum)=mv and K.E.=1/2mvv.                                                        Must say your avatar is really beautiful. Are u like that in real life too. If yes then please accept my proposal!!!!!!!!!!!!!!
961481
When dealing with the conservation of momentum, remember that the total momentum before a collision is the same as the total momentum after a collision. Momentum is mass*velocity.\n\n1) 2*45 + -7*90 = -1*90 + v*45\nSolve for v to get:\nv = (2*45 - 7*90 +1*90)/45 = -10 m/s\n\n2) 10000*10 = (10000+620)*v\nSolve for v to get:\nv = (10000*10)/(10000+620) = 9.42 m/s\n\n3) \n(a) -3*75 - 5*60 = (75+60)*v\nSolve for v to get:\nv = (-3*75 - 5*60)/(75+60) = -3.89 m/s\n(b) 3*75 - 5*60 = (75+60)*v\nSolve for v to get:\nv = (3*75 - 5*60)/(75+60) = -0.56 m/s\n\nI hope this helps!
42744
momentum is speed and mass is the substance of objects
109475
When masses collide, they exchange energy and momentum.  I'm not sure what you mean specifically by "power division", but you might be referring to this exchange of energy, since power is defined as energy transferred per unit time.  If so, just know that the important thing is that the total amount of energy and momentum is conserved, that is, remains constant.\n\nAddendum-  What the next correspondent says about elastic and inelastic collisions is correct; it makes a difference in how energy is transferred.  In every collision, total energy is conserved, as I said, but in elastic collisions, mechanical energy is conserved as well.  That is, none of the energy is converted to other forms of energy like heat, light or potential energy of deformation.  In inelastic collisions, momentum and total energy are conserved, but some of the mechanical energy is converted to those other forms.
757057
Conservation of momentum\nP = mv before must equal mv after\nmass remains the same\nvelocity is a vecor quantity (magnitude and direction)
638982
The kinetic energy changes proportionately to the dot product of the force and the direction of motion.  If the object is always moving at right angles to the force, there is no change in kinetic energy.\n\nThe most obvious example is a planet in a circular orbit around a star.  The star exerts a constant force on the planet, but the planet's kinetic energy never changes because the force is always perpendicular to the direction of motion.\n\nThis is a case where a non-zero net force results in no change in kinetic energy.
605887
Kinetic energy is energy that a body has by virtue of its atate of motion.\nWhen a car crashes it comes to rest(or slows down), so where does all that K.E. go??\nSome of it is converted to sound energy(the crashing sound you hear), some of it is transferred to the object into which you crash, while the rest in transferred to your car(that is why the car gets damaged)
911208
The momentum of an object is defined as:\n\nMomentum = Mass * Velocity (speed)\n\nor:\n\np = m * v\n\nTherefore, an elephant, which is significantly more massive, would have a greater momentum.\n\nHere's a fun head-game: think of momentum as a measure of how much effort is required to stop a moving body. Now imagine that an elephant and a mouse are both running toward you at the same speed. Which one will be harder to stop?\n\nThe mouse will simply bump into you, and will probably spend the rest of the day nursing a headache. The elephant will smash into and keep on going like nothing happened. That's momentum :)
771568
Basically you have the right idea. Use momentum (mass x velocity) for the motion and the sudden change in speed and/or direction (acceleration) and you get force x time = kinetic energy trying to rip you apart or squash you like a bug.
837367
Kinetic Energy\nKinetic energy is the energy of motion. An object which has motion - whether it be vertical or horizontal motion - has kinetic energy. There are many forms of kinetic energy - vibrational (the energy due to vibrational motion), rotational (the energy due to rotational motion), and translational (the energy due to motion from one location to another). To keep matters simple, we will focus upon translational kinetic energy. The amount of translational kinetic energy (from here on, the phrase kinetic energy will refer to translational kinetic energy) which an object has depends upon two variables: the mass (m) of the object and the speed (v) of the object. The following equation is used to represent the kinetic energy (KE) of an object.\n                     \nke=1/2*m*v^2\n\nwhere m = mass of object\n\nv = speed of object
666315
Kinetic energy Ek\n\nlet's consider that an object with a mass m moves on a distance d = x1 - x2, with an acceleration a and its velocity changes from v1 to v1, under the action of a force F\n\naccording to Galileo's law:\nv2^2 - v1^2 = 2.a.d\n\nbut according to Newton's second law:\nF = m.a\n\n-> a = F/m \n-> v2^2 - v1^2 = 2.F.d/m\n-> m.v2^2 - m.v1^2 = 2.F.d\n-> m.v2^2/2 - m.v1^2/2 = F.d\n\nbut W = F.d = the work done while the force F moves the object on the distance d, it caracterizes a process\n\nBut energy is the capacity of an object of doing work, it caracterizes a state\n\nthe kinetic energy is due to the velocity of the object:\n\ndeltaEk = E2 - E1 = W = F.d \n-> E2 = m.v2^2/2\n-> E1 = m.v1^2/2\n\nPotential energy Ep\n\nLet's consider an object with a mass m is falling from a height h1 to h2. \n\nThe work done by gravity is:\n\nW = G.(h1-h2) = m.g.(h1-h2) = m.g.h1 - m.g.h2\n\nThe potential energy is depending on the position of the the object as compared to the Earth and its equal with the work done by gravity taken with opposite sign.\n\ndelta Ep = Ep2 - Ep1 = - W\n\n-> Ep2 = m.g.h2\n-> Ep1 = m.g.h1
209055
Potential Energy: Energy due to position.\nKinetic Energy: Energy due to motion.\n\n======================================================\nAs the ball moves up it gains potential energy and loses kinetic energy. It the maximum height, it has all potential energy and no kinetic energy. As it moves down, it loses potental energy and gains kinetic energy. When it hits the floor it's velocity (ideally) remains the same in magnitude but reverses in direction. It starts moving up again.....\n\nWork is the process of conversion of energy from one for to the other. So, work is being done as the ball bounces up and down.
804774
A good source is Wikipedia, the free, online encyclopedia:\nhttp://en.wikipedia.org/wiki/Momentum\n\nHope this helps!
608223
For moving objects, calculate kinetic energy using the formula:\nKE = (mass x velocity2)/2 or 1/2 mv2\n\nhttp://www.gmhsscience.com/problems/kineticpotential.htm
785895
Imagine someone hit you with a ball. How much would it hurt? Depends doesn't it. If they threw a nerf ball at you really fast you would hardly feel it. If they threw a baseball at you at a much slower speed the impact would be much greater. The nerf ball has less mass than the baseball but was thrown at a greater velocity. Velocity is speed in a particular direction. How much you feel it in this case is due to the ball's momentum. Since momentum depends on both the mass and velocity of a moving object we express momentum in the following formula: Momentum equals mass times velocity or mom = m x v. Impetus is a less specific word. It is defined as the quality described by the mass of an object and its motion. Impetus is less specific (less to the point, vague) than momentum because it depends upon motion rather than velocity.
1117792
Let's make this simple: \n\nInertia and Momentum refer to Newton's 1st Law...Momentum tell us that an object in motion will stay in motion, and inertia tell us that an object at rest will stay at rest...both until acted upon by an unbalanced force.\n\nKinectic energy refers to the energy of moving objects.  (as opposed to potential energy, that refers to objects that are not moving, but that could move.)\n\nExamples:  \n\nInertia:  A pencil sitting on my desk will not move until something moves it.  This is a very comforting thought if you stop and think about it.\n\nMomentum:  If I'm riding my bike, I will continue to move until the force of gravity pushing down on me, and friction moving against the tires, and the wind blowing in my face all conspire to stop me.\n\nKinetic energy:  This is the sum total of all the energy spent keeping my bicycle moving...my legs pedaling, gravity pushing me down the hill, then subtract the forces acting against me.\n\nHey, it ain't rocket science...it's easy!
998070
http://en.wikipedia.org/wiki/Kinetic_energy