A girl sitting on a swing stands up. What effect will that have on the periodic time of the swing?
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When the girl stands up the centre of mass gets higher which is also the point of oscillation.
As a result,the effective length will decrease. Now , since the time period varies with the square root of the effective length (√l) , time period will decrease.
As a result,the effective length will decrease. Now , since the time period varies with the square root of the effective length (√l) , time period will decrease.
shreyamahajan:
saumya can you post the question again plz
answer kaa option nhi aa raha
if you can then plz post plz
time period doesn't depend on centre of mass but length does. right?
length decrease due to centre of mass
due ti distance btw point of suspension and centre of mass length dec
Answered by
2
Answer:
This can be explained using the concept of a simple pendulum. We know that the time period of a simple pendulum is given by
( T= 2π √l/g)
When the girl stands up, the distance between the point of suspension and the centre of mass of the swinging body decreases i.e., length decreases, so Time will also decrease .
@srijansingh
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