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  • if the time taken by the ball A to fall back on the ground is

Sir 2 part... If the time taken by ball A to fall back on the ground is 4 seconds and by ball B is 2 seconds. Then the time taken by ball C to reach the inclined plane after projection will be

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@ AMANDEEP KAUR SEKHON 

Time of flight of A will be same as time of flight oc C if wall was not there.i.e 4 sec

Let point on wall where ball strike as D,E,F for ball A, B, C

So For A time from  Ground to Point D = 2 sec  

Similarly  For B time from  Ground to Point E = 1 sec  

SO For C time from   Point F to ground  (if wall is not there) = 1 sec  

So For C time from  Ground to Point F =( 4sec-1sec)=3sec

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