What is the speed of an athlete landing in a long jump with known range, angle, and height?

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SUMMARY

The discussion focuses on calculating the landing speed of an athlete in a long jump scenario, where the athlete jumps at a 25-degree angle and lands 8.5 meters away from the launch point. The key equations involved are the range formula and standard kinematic equations for both x-axis and y-axis motion. Participants suggest isolating the initial velocity (V) using the range formula, while others prefer using kinematic equations to solve for velocity and time simultaneously. The consensus is that both methods are valid, but the kinematic approach may be more straightforward.

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Homework Statement


During a high school track meet, an athlete performing the long jump runs and leaps at an angle of 25 degrees and lands in a sand pit 8.5 m from his launching point. If the launch point and landing point are at the same height, y=0m, with what apeed does the athlete land?



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The Attempt at a Solution


How do i use range formula to find initial velocity
 
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The range formula is kind of specialized to give you range if you know V, θ, and y(0). Since you know range, θ, and y(0) you could isolate v, I suppose. The algebra looks painful too me. I'd rather find v using standard kinematic equations for x-axis motion and y-axis motion--2 equations, 2 unknowns (v and T).
 

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