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[" A projectile is given an inital veloc...

[" A projectile is given an inital velocity of "],[(2hat i+hat j)m/s" ,where "hat i" is along the ground "],[" and "hat j" is along the vertical.If "g=10m/s^(2)],[" ,the equation of its trajectary is "],[" (1) "4y=2x-25x^(2)],[" (2) "y=x-5x^(2)],[" (3) "y=2x-25x^(2)],[" (4) "4y=2x-5x^(2)]

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