alleryএকজন আরোহী মোট সময়ের প্রথমার্ধে 40 km/h এবং দ্বিতীয়ার্ধে 60 km/h গতিবেগে চলেন। গড় গতিবেগ কত?
A48 km/h
B50 km/h
C54 km/h
D52 km/h
Answer & Solution
Correct answer: B. 50 km/h
সমান সময়ের ক্ষেত্রে গড় গতিবেগ হল সাধারণ গড়, (40 + 60) / 2 = 50 km/h।
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