Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceAn ideal projectile is launched from the origin at an angle of ? radians to the horizontal and an initial speed of  Find the position function r(t) for this projectile.

A. r(t) = (175t sin ? - 16t2)i + (175t cos ?)j
B. r(t) = (175t sin ?)i + (175t cos ? - 16t2)j
C. r(t) = (175t cos ? - 32t2)i + (175t sin ?)j
D. r(t) = (175t cos ?)i + (175t sin ? - 16t2)j


Answer: D

Mathematics

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