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AVINAV KUMAR CHOURASIA
Questions (1)
A particle starts moving from rest with uniform acceleration.It travels a distance x in first 2 sec and a distance y in the next
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Answers (2)
Acc. to the question v=u+at ;v=45m/s , t=6s ;45=u+6a ;(45-u)/6=a----1 ; v^2-u^2=2as ; 2025-u^2=360a ---2 ; subsitute --1 in ---2 eq ; 2025-u^2=360*(45-u)/6 by solving we will get a equation ; u^2-u+675=0 ;we will get u=15 or 45 ; we have to take 15 =u;
Acc. to the question v=u+at ;v=45m/s , t=6s ;45=u+6a ;(45-u)/6=a----1 ; v^2-u^2=2as ; 2025-u^2=360a ---2 ; subsitute --1 in ---2 eq ; 2025-u^2=360*(45-u)/6 by solving we will get a equation ; u^2-u+675 ;we will get u=15 or 45 ; we have to take 15 =u; then
