Long Jump Question - Net forces

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The discussion revolves around calculating the net forces acting on a long-jump contestant during landing. The contestant experiences a downward gravitational force of 538N and an upward force from the ground of 6382N at an angle of 28.3 degrees above the horizontal. Participants express confusion about how to derive the book's answer of 6.15 x 10^3 N at an angle of 23.9 degrees above the horizontal. The conversation emphasizes the need for clarity on the initial steps to approach the problem. Understanding the vector components of the forces is crucial for solving the equation correctly.
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Homework Statement


A Long-Jump Contestant experiences at the instant of landing, a gravitational force of 538N [Downwards], and a force applied by the ground to the feet, of 6382N [28.3 degrees above the horizontal]

(The answer is given in the book, being 6.15 X 10^3 N [23.9 Degrees above the Horizontal]
I just can't find out how to get there.
I have no idea on how to start this equation.
 
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