Question: A meteor follows a trajectory r(t) = (2, 1, 4) + t (3, 2, 1) km with t in minutes, near the surface of the

A meteor follows a trajectory r(t) = (2, 1, 4) + t (3, 2, −1) km with t in minutes, near the surface of the earth, which is represented by the xy-plane. Determine at what time the meteor hits the ground.

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