alleryଏକ 120 m ଲମ୍ବା ଟ୍ରେନ୍ 12 ସେକେଣ୍ଡରେ ଏକ ଟେଲିଗ୍ରାଫ୍ ଖୁଣ୍ଟ ଅତିକ୍ରମ କରେ। ଏହାର ଗତି କେତେ?
A32 km/h
B30 km/h
C40 km/h
D36 km/h
Answer & Solution
Correct answer: D. 36 km/h
ଏହା 12 s ରେ ନିଜ ଦୈର୍ଘ୍ୟ ଅତିକ୍ରମ କରେ, ତେଣୁ 120 / 12 = 10 m/s, ଯାହା 36 km/h ଅଟେ।
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