A) 4.2 hrs
B) 2.2 hrs
C) 2.6 hrs
D) 3.2 hrs
Correct Answer: C
Solution :
\[{{\vec{V}}_{AB}}=40\hat{i}+50\hat{j}\] \[{{\vec{r}}_{BA}}=150\hat{j}\] \[{{t}_{\min }}=\frac{\left| {{{\vec{V}}}_{AB}}\centerdot {{{\vec{r}}}_{BA}} \right|}{{{\left| {{{\vec{V}}}_{AB}} \right|}^{2}}}=2.6hrs.\]You need to login to perform this action.
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