Answer:
at 1 meter height
Explanation:
In this problem we can visualize it as a triangle, since the data that it is shown is the distance (0.6m) and the angle (60º) it can be drawn that the data provided is the angle and the adjacent leg.
With these data, it can be calculated the tangent, that is the relation among the two legs.
The opposite leg, then, will be calculated as the multiplication of the other leg and the tangent of the angle.
so o.l. = tan 60º x 0.6 m = 1.73 x 0.6 = 1.038 m