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What is refrence point? What is motion? What is distance?

What is refrence point? 
What is motion? 
What is distance? 

Grade:9

1 Answers

dhruba
17 Points
one year ago
the fixed point from where a particle is observed is called reference point or frame of reference
the state of not being in rest when observed from a reference point is called motion
the length of path travelled by a moving particle is called distance
 

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