I see an object 3 kms to east and 4 kms to north. It appears to be moving at 1 km per minute in south west direction. At what speed (km per minute) is it getting closer to me?

I see an object 3 kms to east and 4 kms to north. It appears to be mov

1.	I see an object 3 kms to east and 4 kms to north. It appears to be moving at 1 km per minute in south west direction. At what speed (km per minute) is it getting closer to me?
A.	\(\frac{1}{5\sqrt{2}}\)
B.	\(\frac{1}{5}\)
C.	\(\frac{7}{5\sqrt{2}}\)
D.	\(\frac{7}{5}\)
Answer» D. \(\frac{7}{5}\)

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I see an object 3 kms to east and 4 kms to north. It appears to be moving at 1 km per minute in south west direction. At what speed (km per minute) is it getting closer to me?

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