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Question
যদি একটি হাতঘড়ির সেকেন্ডের কাঁটার দৈর্ঘ্য 1 cm হয়। তাহলে এর প্রান্তের রৈখিক বেগ কত হবে?
0.1047 cm.sec
0.1052 cm/sec
0.0105 cm/sec
0.1470 cm/sec
ANSWER : 1
Descrption
<p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>v</mi><mo>=</mo><mi>ω</mi><mi>r</mi><mspace linebreak="newline"> </mspace><mo>=</mo><mfrac><mrow><mn>2</mn><mi>π</mi><mi>n</mi></mrow><mi>t</mi></mfrac><mi>r</mi><mspace linebreak="newline"> </mspace><mo>=</mo><mfrac><mrow><mn>2</mn><mo>×</mo><mi>π</mi><mo>×</mo><mn>1</mn></mrow><mn>60</mn></mfrac><mo>×</mo><mn>1</mn><mspace linebreak="newline"> </mspace><mo>=</mo><mn>0</mn><mo>.</mo><mn>1047</mn></math></p>
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