VERY EASY - 2005

MY ans is not matching....... [2]

its simpl bernoli but pata nahi kyun/.........

ans givn is A

10 Answers

11
virang1 Jhaveri ·

Ans is A

V = √2gh
v2 = 2g * h
v2 = 2* 10 *(3-0.525)
V2 = 2* 10 *( 2.475)
= 2*24.75
= 49.5m/s

21
tapanmast Vora ·

NO!!

they r gettin exact 50

BTW : i too got the same........

11
virang1 Jhaveri ·

significant digit is 2 therefore 50m/s

24
eureka123 ·

applying bernoulli we get
v22=2gh/1-A22/A12

24
eureka123 ·

virang dont apply approximated formula

21
tapanmast Vora ·

eure : can u pl. poinnt out wer's da approx. here :

SORRY : IT CAME ULTRA

24
eureka123 ·

tapan.......
here is is derivation....

21
tapanmast Vora ·

OH!!
okie.......
so in the img i uplloaded they take V' to b negligibl........
k k.....

thnx buddy [1]

21
tapanmast Vora ·

Can u pl. tell me wen can the PResuure Energy of two diff. points be different........ ???

coz v always take P0 to be same..........

24
eureka123 ·

when the media to which they are exposed are diff.......

for eg had the orifice been in some otehr media and top of container in atmosphere.then pressure head would have been diff...........

but this is a rare case

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