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![[Post New]](/templates/default/images/icon_minipost_new.gif) 9 Feb 2008 17:15:47 IST
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hey guys i am back with another assertion reason ques statement 1: a cylindrical tank rests on a platform 'x' m high .the tank is filled with water upto a height of 'y' m.there is an orfice at the bottom of the tank ,fitted with a plug .when the plug is removed ,the distance the jet of water strikes the ground does not depend on y statement2: it is the height x that determines the distance at which jet of water strikes the ground okay so here,s my sol v=  2gy x=(gt^2)/2----------------(1) range =horizontal vel x time = ]2gy x t substituting value of t frm 1 range =2 xy which depends upon y so (D) but ans is (A) so whats wrong???????????????
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10 Feb 2008 00:39:03 IST
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still no ans??????????/
cmon guys
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10 Feb 2008 09:29:32 IST
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according to me statement 2 is right i.e. it depends on x
coz when x = 0 the orifice is almost at the ground level since it is mentioned that orifice is at the bottom of the tank, so we can take the vertical height of the orifice from the ground to be nearly equal to zero,
so even if 'y' changes corresponding to change in horizontal velocity, there would be no horizontal range since the water would come into contact with the ground the very instant; whereas if you change 'x' then the time of flight increases and hence u get greater horizontal range
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10 Feb 2008 16:50:14 IST
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sorry man not very satisfactory
still thanks for trying!!!!!
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11 Feb 2008 23:47:20 IST
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no doubt the ans is A the books may have the wrong sometimes ur solution is correct acco0rding to me
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12 Feb 2008 00:16:37 IST
Accepted Answer [?]
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Statement 1 is wrong.So, (D). Any other answer is wrong as well.
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12 Feb 2008 00:24:53 IST
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the ans is D....
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12 Feb 2008 00:59:57 IST
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can anybody tell me why is the statement 1 wrong
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12 Feb 2008 01:25:13 IST
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thanks guys my doubt is cleared now!!!!!!
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18 Feb 2008 02:55:03 IST
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so ans is A or D (should be D?)
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