Table of Contents
What happens to the period of a pendulum in free fall?
The formula for the period of a pendulum with length L0 where the bob experiences a gravitational acceleration of a0 is: T=2π√L0a0. In free fall, a0=0 so the pendulum wouldn’t swing at all.
What is the period of a simple pendulum in a freely falling elevator on the earth?
On the surface of the earth, the effective length of a pendulum should be 99.2 cm so that its time period becomes 2 seconds and hence, we call it a seconds pendulum.
What is the frequency of a second hand pendulum in an elevator moving up with an acceleration of g 2?
The frequency of a second pendulum in an elevator moving up with a acceleration half the acceleration due to gravity is 0.612 s .
What is the time period of oscillation of a simple pendulum mounted in a cabin that is freely falling under gravity?
Solution 1. When a simple pendulum mounted in a cabin falls freely under gravity, its acceleration is zero. Hence the frequency of oscillation of this simple pendulum is zero.
What is the effective length of seconds pendulum?
Answer: The pendulum whose time period is 2 sec is called second pendulum. its effective length is 1 meter.
How does the period of the pendulum change when the elevator moves upward with constant velocity?
How does the period of the pendulum change when the elevator moves upward with constant velocity? The period increases if the upward acceleration is more than g/2 but decreases if the upward acceleration is less than g/2. The period decreases.
Is the time period of a pendulum suspended in a lift infinite?
Assertion: If a pendulum is suspended in a lift and lift is falling freely, then its time period becomes infinite. Reason: Free falling body has acceleration equal to acceleration due to gravity.
What happens to a pendulum in free fall?
If this is genuine free fall, everything in the lift will be accelerating downwards at g, so there will be no restoring force on the pendulum. Its natural period becomes infinite.
What is the driving force for pendulum to oscillate?
Technically driving force for pendulum to oscillate is gravitational force. So in falling if we see in lift frame of reference there is pseudo exactly equal to g is acting up words which cancels the effect of gravity in that frame of reference
Why is a pendulum called a seconds pendulum?
That is why we call it a seconds pendulum. So, in this formula, T is time period, l is the effective length of a pendulum and g is the acceleration due to gravity. On the surface of the earth, the effective length of a pendulum should be 99.2 cm so that its time period becomes 2 seconds and hence, we call it a seconds pendulum.