SELECT * FROM question_mgmt as q WHERE id=4216 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=8 AND subId=16 AND chapterId=191 and ex_no='5' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 9th science Work and Energy an object of mass m is moving with a constant vel

Question:

An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest?

Answer:

Mass of the object = m

Velocity = v 

Therefore ,Kinetic energy

To bring the object to rest,  amount of work is required to be done on the object.


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