A) remains constant
B) increased by 1 J
C) decreases by 1 J
D) decreases by 2 J
Correct Answer: C
Solution :
The work done on the object \[W={{F}_{1}}D+{{F}_{2}}\]. D Where D is the displacement vector. \[\therefore \]\[w=4(1)+(1)\,(2)+(-1)\,(6)=-1J\] From work - energy theorem, \[w=K{{E}_{1}}-KE=-1J\] Here, we see that energy is decreased by UYou need to login to perform this action.
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