Question

what is the meaning of collision or collide

Answer 1

A collision is an event in which two or more bodies exert forces on each other for a relatively short time. Although the most common colloquial use of the word "collision" refers to incidents in which two or more objects collide with great force, the scientific use of the word "collision" implies nothing about the magnitude of the force.

Answer 2

$hy friend$

A $collision$

⇒Collision is short-duration interaction between two bodies or more than two bodies simultaneously causing change in motion of bodies involved due to internal forces acted between them during this. Collisions involve forces (there is a change in velocity). 

$colloid$

⇒a colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. Sometimes the dispersed substance alone is called the colloid

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