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Shivam Bhagat Grade: 9
        

A simple pendulum has a certain periodic time.What would happen if the pendulum is oscillating in a lift which is stationary and suddenly starts going up..will the oscillations die instantly? pls explain??


 

6 years ago

Answers : (1)

AKASH GOYAL AskiitiansExpert-IITD
419 Points
										

Dear Shivam


Apply a pseudo force on pendulum. initially downward force was mg only now downward  force will be mg+ma. as peudo force acts opposite to the direction of accelerating frame.


now just replace g by g+a called geffective in the expression of time period. so it wont die instantly but time period will be reduced as g comes in the denominator


All the best.                                                           


AKASH GOYAL


AskiitiansExpert-IIT Delhi


 


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6 years ago
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