well this one looks easy
ans i got
180(1+√(14/15))
a jug contains 15 glasses of juice. when u open the tap at the bottom, it takes 12 secinds to fill a glass with juice. if u leave the tap open, how long will it take to fill the ramaining 14 glasses and thus empty the jug ?
i asusual flopped. celestine and rohan rocked !!! my score is pathetic [256]
no john cena its not 44.9
and yes rohan i guess ur ans also same as mine (guess u found total time in#2 )
method is quite simple
dV= AdH =adV now V =√2gH/1-(a/A)2
so simply put
dH =α√Hdt
ie t=λ(√H1-√H2)