SELECT * FROM question_mgmt as q WHERE id=4098 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=8 AND subId=16 AND chapterId=187 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 9th science Motion distinguish between speed and velocity

Question:

Distinguish between speed and velocity.

Answer:

Speed Velocity
The distance travelled by a moving object per unit time is called its speed. It does not have any direction. The distance travelled by moving an object in a particular direction per unit time is called its velocity. It has a unique direction.

Speed is given by the relation:

Velocity is given by the relation:
It is a scalar quantity. It is a vector quantity.

 


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