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Grade: 12th pass
        
 PLESE IN DETAIL ANSWER    RECTILINEAR MOTION                                              THE    QUESTION NUMBER B 3
one month ago

Answers : (1)

Arun
15885 Points
							
 
average velocity = displace / time
so here we can assume total displacement covered is S
for 1st  part    time = displacement / velocity   =  (S/3) / 2 
as displacement is S/3 and veocity is 2
 
similarly for 2nd part time = (S/3) / 3
                   3rd part time = (S/3) / 6
 
so total time = (S/6) + (S/9) + (S/18) =  S (3+2+1)     =  S (6)    =   S
                                                                      18                 18          3
 
therefore average velocity =   S      =  S3   =   3m/s
                                             (S/3)       S
 
 
 
Regards
Arun
one month ago
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