alleryএটা বল 10 ছেকেণ্ডত 150 m দলিয়াই দিয়া হয়। km/h-ত সেই দ্ৰুতি কিমান?
A54 km/h
B45 km/h
C48 km/h
D36 km/h
Answer & Solution
Correct answer: A. 54 km/h
150 / 10 = 15 m/s, আৰু 15 x 3.6 = 54 km/h।
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