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NEET Class neet Answered

please answer this ?
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Asked by Prashant DIGHE | 20 Apr, 2020, 10:38: PM
answered-by-expert Expert Answer
C h a n g e space i n space v e l o c i t y space i s space g i v e n space b y F i n a l space v e l o c i t y space minus i n i t i a l space v e l o c i t y V subscript f equals 4 i V subscript i equals 3 S i n 30 to the power of 0 i minus 3 cos 30 to the power of 0 j minus negative negative negative left parenthesis T h e space i n i t i a l space v e l o c i t y space v e c t o r space m a k i n g space a n g l e space 30 to the power of 0 space w i t h space t h e space v e r t i c a l space s o space t a k i n g space c o m p o n e n t s right parenthesis V subscript i equals 3 over 2 i minus fraction numerator 3 square root of 3 over denominator 2 end fraction j C h a n g e space i n space v e l o c i t y equals V subscript f minus V subscript i equals 4 i minus left parenthesis 3 over 2 i minus fraction numerator 3 square root of 3 over denominator 2 end fraction j right parenthesis equals 5 over 2 i plus fraction numerator 3 square root of 3 over denominator 2 end fraction j T a k i n g space m a g n i t u d e square root of open parentheses 5 over 2 close parentheses squared plus open parentheses fraction numerator 3 square root of 3 over denominator 2 end fraction close parentheses squared end root equals square root of 13
Answered by Utkarsh Lokhande | 21 Apr, 2020, 11:29: AM

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