Rankers Physics
Topic: Work Energy and Power
Subtopic: Principal of Conservation of Energy

A system absorbs 600 J of the system works equivalent to –900 J by The value of ΔE for the system is :
-300 J
+300 J
-600 J
+600 J

Solution:

Work done by external agent = -900 J and energy supplied is 600 J So, change  in kinetic energy is -300 J

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