alleryএকটি 1000 m দৌড়ে A 10 m/s গতিবেগে দৌড়ায় এবং 100 m ব্যবধানে জয়ী হয়। B কত গতিতে দৌড়ায়?
A8.5 m/s
B9 m/s
C9.5 m/s
D8 m/s
Answer & Solution
Correct answer: B. 9 m/s
A-এর 100 s সময় লাগে; B সেই সময়ে 900 m দূরত্ব অতিক্রম করে, যা হলো 9 m/s।
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