during collision _ remains constant
Answers
Answer:
During collision, which may be either elastic or inelastic, the momentum of individual objects may change in a system, but it is the "total momentum" of all the objects together that always remain constant in an "isolated system"
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Explanation:
Although the momentum of individual objects may change during a collision, the total momentum of all the objects in an isolated system remains constant. ... Kinetic energy is not conserved, but the result is easy to calculate via conservation of momentum.
Although the momentum of individual objects may change during a collision, the total momentum of all the objects in an isolated system remains constant.
An isolated system is one on which the net force from external sources is zero. For example, a hockey puck sliding along the ice is an isolated system: there is a gravitational force down on it, but also a normal force from the ice up on it; the two external forces add up to zero.
Collisions may be separated into several categories, some of which are easier to solve than others:
Completely inelastic collisions involve objects which stick together afterwards. Kinetic energy is not conserved, but the result is easy to calculate via conservation of momentum.
Partially inelastic collisions involve objects which separate after they collide, but which are deformed in some way by the interaction. Kinetic energy is not conserved. It's not easy to figure out what happens afterwards, because there are many possible solutions which satisfy conservation of momentum.
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