Questions
For the pivoted slender rod of length l as shown in figure, the angular velocity as the bar reaches the vertical position after being released in the horizontal position is
detailed solution
Correct option is C
when the systm is released loss in P.E for3 l4part is 3mg43l8 and gain in P.E. for l/4 part is mg4l8 ; net loss in P.E is 9mgl32-mgl32=mgl4= increase in roattional K.E ; 12Iω2=mgl4 here I about an axis l4 from the center is ml212+ml216=7ml248 ; soving for ω we get ω=24g7lTalk to our academic expert!
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In Melde’s experiments in the longitudinal mode of vibration a string vibrates in 4 loops with a load of 8 gm. How much load would be required in order that the string many vibrate in 8 loops in transverse mode.
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