A) \[-7\]
B) \[+7\]
C) \[+10\]
D) \[+13\]
Correct Answer: B
Solution :
Work done is displacing the particle \[W=\overrightarrow{F}.\overrightarrow{r}=(5\hat{i}+3\hat{j}+2\hat{k}).(2\hat{i}-\hat{j})\] \[=5\times 2+3\times (-1)+2\times 0=10-3\] \[=7J\]You need to login to perform this action.
You will be redirected in
3 sec