allery54 km/h ବେଗରେ ଯାଉଥିବା ସେହି ସମାନ 180 m ଟ୍ରେନ୍ ତା' ଆଡ଼କୁ 18 km/h ବେଗରେ ଦୌଡ଼ି ଆସୁଥିବା ଜଣେ ଜଗରଙ୍କୁ ଭେଟେ। ତାଙ୍କୁ ଅତିକ୍ରମ କରିବା ପାଇଁ କେତେ ସମୟ ଲାଗିବ?
A12 seconds
B10 seconds
C8 seconds
D9 seconds
Answer & Solution
Correct answer: D. 9 seconds
ଆପେକ୍ଷିକ ବେଗ 72 km/h = 20 m/s, ତେଣୁ 180 / 20 = 9 seconds।
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