alleryಒಂದು 120 ಮೀ ಉದ್ದದ ರೈಲು 12 ಸೆಕೆಂಡುಗಳಲ್ಲಿ ಟೆಲಿಗ್ರಾಫ್ ಕಂಬವನ್ನು ಹಾದುಹೋಗುತ್ತದೆ. ಅದರ ವೇಗ ಎಷ್ಟು?
A32 km/h
B30 km/h
C40 km/h
D36 km/h
Answer & Solution
Correct answer: D. 36 km/h
ಇದು ತನ್ನದೇ ಆದ ಉದ್ದವನ್ನು 12 s ನಲ್ಲಿ ಆವರಿಸುತ್ತದೆ, ಆದ್ದರಿಂದ 120 / 12 = 10 m/s, ಅಂದರೆ 36 ಕಿಮೀ/ಗಂ.
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