এনএটিপি-২ প্রকএল্পর আওতায় ক্ষেত্র-সহকারী নিয়োগ পরীক্ষা (2017) || 2017
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Created:
3 months ago
|
Updated:
10 hours ago
Created:
3 months ago
|
Updated:
11 hours ago
১ টি চাকার ব্যাস = ৪.৫ মিটার।
চাকার ব্যাসার্ধ = (৪.৫ ২) = ২.২৫ মিটার
চাকাটি বৃত্তাকার । অর্থাৎ চাকাটি একবার ঘুরলে চাকাটি তার পরিধির সমান পথ অতিক্রম করবে।
চাকার পরিধি = ২r [এখানে r= ব্যাসার্ধ]
=২৩.১৪১৬২.২৫=১৪.১৩৭ মি.
১ মিটার অতিক্রম করলে চাকাটি ঘুরে = বার
৩৬০ মিটার অতিক্রম করলে চাকাটি ঘুরে==২৫.৪৬ বার
অর্থাৎ ২৬ বার ঘুরে (প্রায়)।
Created:
3 months ago
|
Updated:
1 day ago
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