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A 5 kg body has moment of inertia 9 kg/ is suspended from a steel wire of negligible mass whose couple per unit twist is 49 Nm/rad. It executes small angular oscillations with a time period of
detailed solution
Correct option is D
For torsional pendulam,T=2πIc I is moment of inertia ; c is couple per unit twistsubstitute the given values I=9 N sq met; C=49Nm/rad⇒T=2π949 ⇒T=2π37 ⇒T=6π7Talk to our academic expert!
Similar Questions
An sphere of moment of inertia 4 kg/m2 passing through the diameter. It is suspended from a steel wire of negligible mass, whose couple per unit twist is 81 Nm/rad. It is allowed to execute small angular oscillations. The angular frequency of oscillation is
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