Posted by Subhotosh Khan on September 12, 2002 at 12:18:12:
In Reply to: Re: Please show us your attempts (n/t) posted by I. Newton on September 12, 2002 at 09:04:56:
D= SQRT[ (600t)^2 + (300-500t)^2].
Find condition for minimum 'd' by setting dD/dt =0
solve for 't' from there. If my calculations are correct, the answer is t = 15/51 (not t = 3/5)- that is because the 'relative velocity' is not zero when plane 'B' reaches the origin.
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