0

Guest

Courses New

A girl swinging on a swing in sitting position suddenly stands on it. Then period of oscillation of the swing A. Increases B. Decreases C. Remain unchanged D. Becomes infinite

A girl swinging on a swing in sitting position suddenly stands on it. Then period of oscillation of the swing
A. Increases                                    B. Decreases      C. Remain unchanged                   D. Becomes infinite

Question Image
Grade:12th pass

3 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
576-1265_1.PNG
Vikas TU
14149 Points
4 years ago
When athe 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, time period will decrease.
Arun
25750 Points
4 years ago

As we learnt in

Time period of oscillation of simple pendulum -

T=2\pi \sqrt{\frac{l}{g}}

- wherein

l = length of pendulum 

g = acceleration due to gravity.

 

 

 

The centre of gravity shifted upwards so the length from point of suspension will decrease.

Correct option is 2.

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More