alleryहें . A 180 m गाडी 420 m बोगद्यांत 20 m/s च्या वेगान प्रवेश करता. तो पुरायपणान निवळ करपाचो वेळ?
A24 s
B30 s
C21 s
D36 s
Answer & Solution
Correct answer: B. 30 s
बोगदो पुराय ओलांडपाक रेल्वेगाडयेन 180 + 420 = 600 m अंतर कापपाक जाय. ताका 600 ÷ 20 = 30 सेकंद वेळ लागता.
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