It is due to the momentum of the two bodies.
The relative velocity of two electrons approaching each other would be the sum of their individual velocities. Given that both electrons have the same charge and mass, their velocities would be equal in magnitude but opposite in direction. This would result in a combined relative velocity of zero when they meet.
If you jump up, for example, with a momentum of 100 kilogram x meter / second (this can be done by jumping up at a speed of 2 meters/second, if you have a mass of 50 kilograms), then the Earth will recoil by the same amount of momentum - in the opposite direction of course. This follows directly from Conservation of Momentum.
This process of rocks moving in opposite directions on opposite sides of a fault is known as strike-slip faulting. The movement can be either left-lateral (sinistral) or right-lateral (dextral), depending on the relative lateral displacement of the blocks. If the rocks move in the same direction but at different rates, it may indicate differential movement caused by friction variations along the fault plane.
Simply because physicists discovered that it is a product that is conserved. In collisions of two objects for example, if you add up the momentum before the collision the momentum will be the same after the collision. Note that momentum is not something that has a concrete reality. A rock sitting on the ground has zero momentum relative to us here on earth but has alot of momentum relative to someone on mars. It can not have zero momentum and alot of momentum at the same time, it depends on ones frame of reference. My point is that momentum is not at 'concrete" thing. Refer to the 'Conservation of linear momentum' in Wikipedia.org, "The World's Encyclopedia" *Check out related links*
We know their masses and relative velocities, so can predict their movement through calculations based on these known values.
Two objects can travel at the same speed but have different velocities if they are moving in different directions. Velocity is a vector quantity that includes speed and direction, so if the two objects are moving in opposite directions or at different angles relative to a reference point, their velocities will be different.
Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.
no kinetic energy is basically "in motion", momentum is built upon speed, weight, and strength of a moving object. if you would like the definition of potential energy it is the ability or placement of an object before kinetic energy forms
...travel in different directions relative to a reference point. Velocity is a vector quantity that includes both speed and direction, so even if objects are moving at the same speed, their velocities can differ if they are moving in different directions.
The combining of velocities is known as velocity addition or relative velocity. It involves adding or subtracting the velocities of two objects moving relative to each other.
The relative velocity of two electrons approaching each other would be the sum of their individual velocities. Given that both electrons have the same charge and mass, their velocities would be equal in magnitude but opposite in direction. This would result in a combined relative velocity of zero when they meet.
If two trains on different tracks are moving at the same speed, they will pass each other. However, if they are moving in opposite directions on parallel tracks, it may appear that they are not passing each other since their relative speed is zero. This is because their velocities relative to each other cancel out.
If you jump up, for example, with a momentum of 100 kilogram x meter / second (this can be done by jumping up at a speed of 2 meters/second, if you have a mass of 50 kilograms), then the Earth will recoil by the same amount of momentum - in the opposite direction of course. This follows directly from Conservation of Momentum.
Depending on how you define it. Momentum is always given positive units, but sometimes when considered in a relative view, it can be in a negative direction making the overall value negative too (while mass is always positive, velocity might be in a negative direction where e.g. two masses are moving in opposite directions).
Relativistic momentum is derived from the principles of special relativity, which describe how the laws of physics apply in different frames of reference moving at constant velocities relative to each other. The formula for relativistic momentum takes into account the effects of time dilation and length contraction at high speeds, resulting in a modified equation compared to classical momentum. This equation is derived through mathematical calculations and is used to describe the momentum of objects moving at speeds close to the speed of light.
Vector addition of velocities would be if something like you were on an escalator, which is going down, and you tried to run up the escalator. So if the escalator is moving down at a rate of 5 ft/sec and you run up at 13 ft/sec (relative to the escalator) then the net velocity relative to the Earth is 8 ft/sec up. So you just subtract, because the two vectors are in the same line. OK so really the direction is at an angle (rather than 'up'). The larger velocity direction will determine the net direction. If you were walking up the escalator at 3 ft/sec (relative to the escalator), then your net velocity is 2 ft/sec down.
relative, opposite of absolute