NEET Class neet Answered

Q16 Ans3

Asked by manasvijha | 09 Apr, 2019, 10:00: PM

Expert Answer

l e t space u s space a s s u m e space t h e space i n i t i a l space v e l o c i t y space u space w i t h space w h i c h space t h e space b o d y space i s space p r o j e c t e d comma space a n d space i t s space m a k i n g space a n space a n g l e space theta space w i t h space h o r i z o n t a l i n i t i a l space v e l o c i t y space a l o n g space x space a x i s space w o u l d space b e space u cos theta space a n d space a l o n g space y space a x i s space w o u l d space b e space u sin theta a n d space a s space w e space k n o w space a t space m a x i m u m space h e i g h t space v e l o c i t y space a l o n g space y space a x i s space b e c o m e s space z e r o space comma space o n l y space v e l o c i t y space a l o n g space x space a x i s space l e f t comma a n d space i t s space g i v e n u cross times fraction numerator square root of 3 over denominator 2 end fraction space equals space u cos theta f r o m space h e r e space v a l u e space o f space theta space i s space 30 degree n m a x i m u s space h e i g h t space h space equals space fraction numerator u squared sin squared 30 over denominator 2 g end fraction space equals space fraction numerator u squared over denominator 8 g end fraction m a x i m u m space r a n g e space R space equals space fraction numerator u squared sin 60 over denominator g end fraction space equals space fraction numerator u squared square root of 3 over denominator 2 g end fraction i t s space g i v e n space R space equals space p cross times h p u t t i n g space t h e space v a l u e s space o f space R space a n d space h space w e space g e t p space equals space 4 square root of 3 s o space o p t i o n space 3 space c o r r e c t

Answered by Ankit K | 09 Apr, 2019, 10:50: PM

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