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Asked by Harshhacker2580 | 30 Apr, 2020, 13:04: PM
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L e t space d i s tan c e space O C space w h e n C space c o m e s space t o space r e s t space b e space apostrophe x apostrophe F r o m space g i v e n space f i g u r e comma space B C thin space equals space D C space equals space square root of a squared plus x squared end root space minus a space space... space left parenthesis C space i s space a t space O space i. e. space m i d p o i n t space o f space B D space right parenthesis B y space l a w space o f space c o n s e r v a t i o n space o f space e n e r g y comma space 2 m g space open parentheses square root of a squared plus x squared end root space minus a space close parentheses space equals space m g x space T h u s comma space s o l v i n g space t h i s space w e space g e t comma space 2 space open parentheses square root of a squared plus x squared end root space minus a space close parentheses space equals space x space 2 space open parentheses square root of a squared plus x squared end root close parentheses space minus space 2 a space equals space x 2 space open parentheses square root of a squared plus x squared end root close parentheses space equals space x space plus space 2 a S q u a r i n g space o n space b o t h space t h e space s i d e s comma space 4 open parentheses a squared plus x squared space close parentheses space equals space open parentheses x space plus space 2 a close parentheses squared space 4 a squared space plus space 4 x squared space equals space x squared plus space 4 a x space plus space 4 a squared 3 x squared space equals 4 a x space space H e n c e comma space x equals space fraction numerator 4 a over denominator 3 end fraction  
Thus, when C comes to instantaneous rest distance OC will be 4a/3. 
Answered by Shiwani Sawant | 30 Apr, 2020, 15:21: PM

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