Question
Download Solution PDFস্রোতের বিপরীতে 40 কিমি একটি নির্দিষ্ট দূরত্ব যেতে একজন নাবিকের সময় লাগে 8 ঘন্টা এবং একই দূরত্ব স্রোতের অনুকূলে যেতে তার সময় লাগে মাত্র 5 ঘন্টা। স্থির জলে নাবিকের গতিবেগ কত ছিল?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFধরা যাক x হল নাবিকের গতিবেগ এবং y হল জলের স্রোতের গতিবেগ
স্রোতের বিপরীতে যাওয়ার সময় গতিবেগ = (x –y)
⇒ 40/ (x – y) = 8
⇒ x – y = 5 ---- (1)
এখন স্রোতের অনুকূলে যাওয়ার সময় গতিবেগ = (x + y)
⇒ 40/ (x + y) = 5
⇒ x + y = 8 ----(2)
সমীকরণ 1 এবং 2 থেকে আমরা পাই
x = 6.5 কিমি/ঘণ্টা
∴ নাবিকের গতিবেগ = 6.5 কিমি/ঘণ্টাLast updated on Jul 16, 2025
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