Question
Download Solution PDFएक नाव 12 किमी की दूरी धारा के प्रतिकूल 1 घंटे में और धारा के अनुकूल 45 मिनट में तय करती है। नाव और धारा की गति (किमी/घंटा में) ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
कुल दूरी = 12 किमी
धारा के प्रतिकूल दूरी तय करने में लगा समय = 1 घंटा
धारा के अनुकूल दूरी तय करने में लगा समय = 45 मिनट
प्रयुक्त अवधारणा:
प्रतिकूल गति = U - V
अनुकूल गति = U + V
जहाँ, U = स्थिर जल में नाव की गति
और V = धारा की गति
गणना:
धारा के प्रतिकूल गति = 12/1 = 12 किमी/घंटा
धारा के अनुकूल गति = (12×60)/45 = 16 किमी/घंटा
स्थिर जल में नाव की गति (U) = (12 + 16)/2 = 28/2 = 14 किमी/घंटा
धारा की गति (V) = (16 - 12)/2 = 4/2 = 2 किमी/घंटा
∴ सही विकल्प 3 है।
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