A) \[39\,J\]
B) \[-39\,J\]
C) zero
D) data insufficient
Correct Answer: B
Solution :
By work kinetic energy theorem \[{{W}_{g}}+{{W}_{\text{resistance}}}=\Delta KE\] \[400+{{W}_{\text{resistance}}}=361\] \[{{W}_{\text{resistance}}}=-39J\]You need to login to perform this action.
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