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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesHard2 minQB

PhysicsHardnumerical

A string of mass 50 g is vibrating in a standing wave with amplitude 2 cm at the antinodes and frequency 50 Hz. What is the maximum kinetic energy of the whole string? (answer in $J$ ).

Answer:

0.49

Solution:

$K_{ma x} = \frac{1}{4} m A^{2} ω^{2} = \frac{1}{4} \times 0.05 \times (0.02)^{2} \times (2 π \times 50)^{2} = 0.494$ J $\approx$ 0.49 J.

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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