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Byju's Answer

Standard XII

Mathematics

Nth Term of GP

Two ships are...

Question

Two ships are 10 km apart on a line joining south to north. The one farther north is steaming west at 20 km $h^{- 1}$ . The other is steaming north at 20 km $h^{- 1}$ . What is their distance of closest approach ?

$10 \sqrt{2} k m$

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$5 \sqrt{2} k m$

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$20 \sqrt{2} k m$

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10 km

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Solution

The correct option is B
$5 \sqrt{2} k m$

$d_{s h o r t e s t} = 10 c o s 45^{o}$

$= 5 \sqrt{2} k m$

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Two ships are 10 km apart on a line joining south to north. The one farther north is steaming west at 20 km h−1. The other is steaming north at 20 km h−1. What is their distance of closest approach ?

The correct option is B 5√2km dshortest=10cos45o =5√2km

Two ships are 10 km apart on a line joining south to north. The one farther north is steaming west at 20 km $h^{- 1}$ . The other is steaming north at 20 km $h^{- 1}$ . What is their distance of closest approach ?

The correct option is B
$5 \sqrt{2} k m$

$d_{s h o r t e s t} = 10 c o s 45^{o}$

$= 5 \sqrt{2} k m$