kinematics

IIT JEE 2015 Coaching › Mechanics questions › kinematics

a body is thrown vertically upwards. if air resistance is to be taken into account,then the time during which the body rises is
a)equal to the time of fall
b)less than the time of fall
c)greater than the time of fall
d)twice the time of fall
.
please explain

#Physics #Mechanics

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4 Answers

1161

Akash Anand ·2012-06-15 00:17:17

Air resistance will oppose in going upward and coming downward (both cases) but gravity oppose only going up but support coming down. So option C will be the answer

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Prankster piyush ya i also think so and according to me too C is d right answer
Upvote·0· Reply ·2012-06-15 22:27:39
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18

Prankster piyush ·2012-06-15 03:38:51

sir but in shastras ans. is (b)

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Indayan Bera Sorry to interfere but even I think C is the answer
Upvote·0· Reply ·2012-06-15 22:14:51
Prankster piyush DATS D WRONG ANS
Upvote·0· Reply ·2012-06-15 22:15:41
Indayan Bera But dont u think its practically impossible??
Upvote·0· Reply ·2012-06-15 22:17:07
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Saumya Sambit ·2012-06-20 02:42:39

C is right!

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158

Anik Chatterjee ·2012-06-20 03:43:25

ya in another book....mechanics part-1 by dc pandey...there is the same question and the same answer....

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Anik Chatterjee this is confusing...
Upvote·0· Reply ·2012-06-20 03:43:59
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Your Answer

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