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A block of mass m is kept on rough horizontal tum table at a distance r from centre of table. Coefficient of friction between turn table and block is mu. Now turn table starts rotating with uniform angular acceleration alpha. Find the time after which slippping occurs between block and turn table |
Answer» <html><body><p>`t= ((mu^(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)g^(2)-alpha^(2)<a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</a>^(2))/(alpha^(<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>)r^(2)))^(1//4)`<br/>`t= ((mu^(2)g^(2)-alpha^(2)r^(2))/(alpha^(4)r^(2)))^(1//3)`<br/>`t= ((mu^(2)g^(2)-alpha^(2)r^(2))/(alpha^(4)r^(2)))^(1//2)`<br/>`t= ((mu^(2)g^(2)-alpha^(2)r^(2))/(alpha^(4)r^(2)))`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html> | |