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Physics - SHM Question with Solution | TestHub

PhysicsSHMOscillations and SHMHard2 min

PhysicsHardnumerical

Two identical rods of length 0.9 m are joined at one end with an angle of 60° between them and hung on a peg at the joint. Find the period of small oscillations in the plane, in s ( $g = 9.8$ ).

Answer:

1.67

Solution:

$I = 2 \cdot \frac{m l ^{2}}{3}$ . Centre of mass depth $d = \frac{l}{2} cos 3 0^{\circ} = \frac{3 l}{4}$ . $T = 2 π \frac{2 m l ^{2} /3}{2 m g d} = 2 π \frac{4 l}{3 3 g} = 1.67$ s.

Subject:PhysicsTopic:SHMSubtopic:Oscillations and SHM

⏱ 2m

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