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CBSE Class 11-science Answered

A projectile is given  an initial velocity of (i+2j)m/s where i is along the ground and j is along the vertical. If g=10m/s2, the equation of its trajectory is?
Asked by Yagnawalka | 21 Jul, 2015, 01:58: PM
answered-by-expert Expert Answer
begin mathsize 12px style The space equation space of space projectile space is space given space by comma straight y equals xtan space straight theta minus 1 half fraction numerator gx squared over denominator straight u squared space cos squared space straight theta end fraction tan space straight theta equals straight u subscript straight y over straight u subscript straight x equals 2 over 1 equals 2 therefore space straight y equals 2 straight x minus 1 half fraction numerator 10 straight x squared over denominator left parenthesis 1 squared plus 2 squared right parenthesis cross times begin display style fraction numerator 1 over denominator 1 plus tan space straight theta end fraction end style end fraction equals 2 straight x minus 1 half fraction numerator 10 straight x squared over denominator left parenthesis 1 squared plus 2 squared right parenthesis cross times begin display style 1 fifth end style end fraction rightwards double arrow space straight y equals 2 straight x minus 5 straight x squared end style
Answered by Priyanka Kumbhar | 21 Jul, 2015, 03:46: PM
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