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A-block-is-tied-with-a-thread-of-length-l-and-moved-in-a-horizontal-circle-on-a-rough-table-Coefficient-of-friction-between-block-and-table-is-0-2-Find-tan-where-is-the-angle-between-accele




Question Number 21967 by Tinkutara last updated on 07/Oct/17
A block is tied with a thread of length l  and moved in a horizontal circle on a  rough table. Coefficient of friction  between block and table is μ = 0.2.  Find tan θ, where θ is the angle  between acceleration and frictional  force at the instant when speed of  particle is v = (√(1.6lg))
Ablockistiedwithathreadoflengthlandmovedinahorizontalcircleonaroughtable.Coefficientoffrictionbetweenblockandtableisμ=0.2.Findtanθ,whereθistheanglebetweenaccelerationandfrictionalforceattheinstantwhenspeedofparticleisv=1.6lg
Commented by Tinkutara last updated on 07/Oct/17
Answered by ajfour last updated on 09/Oct/17
tan θ=((v^2 /l)/(μg)) =((1.6g)/(0.2g)) =8 .
tanθ=v2/lμg=1.6g0.2g=8.
Commented by Tinkutara last updated on 09/Oct/17
Thank you very much Sir!
ThankyouverymuchSir!

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