Consider a tower 50 m south from your home, where the coordinate frame is centred at your home, such that east is in the direction of the x-axis and north is in the direction of the y-axis, then the coordinate vector to the base of the tower is r = (0, −50 m, 0). If the tower is 50 m high, and this height is measured along the z-axis. What is the coordinate vector to the top of the tower? with drawing

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