Saurabh Singh
Last Activity: 10 Years ago
at time t hours after 1:30
first person will be 7.5+5t from O
second person will be 5t from O
distance between two will be
7.5+5t^2 +5t^2
we need to minimize this
the plot would look like -->
so they are closest at 0.75 hours before 1:30
i.e 45 minutes before 1:30
i.e 12:45
nnnnnnnn
Thanks & Regards
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Saurabh Singh,
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askIITians Faculty
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B.Tech.
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IIT Kanpur