1.

A projectile is given an initial velocity of \[\left( \hat{i}\text{ }+\text{ }2\text{ }\hat{j} \right)\text{ }m/s\], where; is along the ground and j is along the vertical. If \[g=10\text{ }m/{{s}^{2}}\], the equation of its trajectory is :

A. \[y=x-5{{x}^{2}}\]     
B.        \[y=2x-5{{x}^{2}}\]
C. \[4y=2x-5{{x}^{2~}}~\]
D.        \[4y=2x-25{{x}^{2}}\]
Answer» C. \[4y=2x-5{{x}^{2~}}~\]


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