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Mechanical Properties Of Fluids

Question

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Why the simple pendulum does not oscillate in free falling lift?

Solution

The restoring force for the simple pendulum to oscillate is provided by the gravity. In free falling lift, the effect value of gravity is zero. Therefore no restoring force acts on the bob and hence the pendulum does not oscillate.

Some More Questions From Mechanical Properties of Fluids Chapter

What is time period?

Define frequency.

What is the condition for motion to be simple harmonic motion?

In the displacement equation y = r sin(ωt/ + ϕ) what does ϕ called and what information does it give?

What determines the natural frequency of an oscillator?

Is there any relation between uniform circular motion and simple harmonic motion?

What is periodic motion?

Write down the expression for the instantaneous velocity and acceleration of particle vibrating in simple harmonic motion.

How do you define the mean position of particle executing simple harmonic motion?

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