Question

Define speed.....velocity.....acceleration... combustion.... friction and everything...​

Answer 1

Answer:

Define speed.....velocity.....acceleration... combustion.... friction and everything...

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Answer 2

Explanation:

velocity:- The distance travelled in a particular direction by an object in unit time is called as it's velocity.

acceleration:- The rate of change of velocity is called as acceleration.

combustion:- The carbon compounds burns in air to form carbon dioxide and water along with heat and light called as combustion.

Friction:-The rubbing of one object or surface against another. Conflict, as between persons having dissimilar ideas or interests; clash. Physics A force that resists the relative motion or tendency to such motion of two bodies or substances in contact.