SELECT * FROM question_mgmt as q WHERE id=6077 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=11 AND subId=16 AND chapterId=473 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 7th science Motion and Time which of the following relations is correct i

Question:

Which of the following relations is correct?

(i) Speed = Distance × Time      (ii) Speed = Distance
                                                                        Time

(iii) Speed = Time                       (iv) Speed =            1          
                   Distance                                      Distance × Time

Answer:

(ii) The speed of an object is given by the relation:

Speed = Distance travelled
                        Time

The speed is defined as the distance covered by an object per unit time. The SI unit of time is m/s.


SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='11' AND subId='16' AND ex_no!=0 AND status=1 and id!=6077 ORDER BY views desc, last_viewed_on desc limit 0,10
SELECT ex_no,question,question_no,id,chapter FROM question_mgmt as q WHERE courseId='11' AND subId='16' AND ex_no!=0 AND status=1 and id!=6077 ORDER BY last_viewed_on desc limit 0,10

Comments

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  • 4 months ago

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  • Answered by Ekta Mehta
  • 4 months ago

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  • Answered by Ekta Mehta
  • 4 months ago

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