alleryA 180 m ଟ୍ରେନ୍ 20 m/s ରେ 420 m ଟନେଲରେ ପ୍ରବେଶ କରେ | ଏହାକୁ ସମ୍ପୂର୍ଣ୍ଣ ସଫା କରିବାର ସମୟ?
A24 s
B30 s
C21 s
D36 s
Answer & Solution
Correct answer: B. 30 s
600 ÷ 20 = 30 ସେକେଣ୍ଡ ନେଇ ଟନେଲ୍ ସଫା କରିବାକୁ ଟ୍ରେନ୍ ନିଶ୍ଚିତ ଭାବରେ 180 + 420 = 600 ମିଟର ଯାତ୍ରା କରିବ |
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