1. A projectile launched from the ground with an initial speed of 20 m/s and a launch angle follows a trajectory approximated by x = (20 cos 0)t y = -4.9t² + (20 sin 0)t where x and y are the horizontal and vertical positions of the projectile relative to the launch point (0,0). a. Graph the trajectory for various values of 0 in the range 0 < 0 <- 9 b. Based on your observations, what value of 0 gives the greatest range (the horizontal distance between the launch and landing points)?

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