Lucas programs his quadcopter to fly with a velocity (speed and direction) vector p ⃗ = 4 i ^ + 7 j ^ p ​ =4 i ^ +7 j ^ ​ p, with, vector, on top, equals, 4, i, with, hat, on top, plus, 7, j, with, hat, on top, which should send it straight at its target (in the absence of wind). To his dismay, his quadcopter actually moves with a velocity vector a ⃗ = 2 i ^ + 8 j ^ a =2 i ^ +8 j ^ ​ a, with, vector, on top, equals, 2, i, with, hat, on top, plus, 8, j, with, hat, on top.