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The angles shown in the diagram are 25, 35, 45, 55 and 65 degrees, respectively. All shots in the diagram have an initial speed of 15 m/s.

0 m²
65
15.0 m
· — — — —µ²1-²-

Calculate the initial speed needed to reach a maximum height hmax of 10 m with a launch angle of 70° on a piece of paper, showing all
your work, using the maximum height equation:
hmax = 30+
2g

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