AP Physics ~ A good jump in the long jump event is

In summary, the conversation discusses the equation vf²=vi²+2aY and its use in calculating the speed needed for a successful jump of 3.7m in the long jump event. With an initial angle of 25° and an acceleration of -9.8, the final velocity is calculated to be 13.1m/s. The conversation also suggests posting such questions in the appropriate forum for better responses.
  • #1
Silverbolt
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0
A good jump in the long jump event is 3.7m. If the jumper leaves the ground at an angle of 25°, what speed must he need to jump the 3.70m distance?

→Could you use this equation: vf²=vi²+2aY aka (final velocity)²= (initial velocity)²+2(acceleration)(distance in the y-direction)
→So, that would be: 0=(vsin25 °)²+2(-9.8)(3.7)∴ v=13.1m/s

Please help me if I am wrong.
 
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  • #3
Thank you for re-posting in the Introductory Physics forum! :smile:
 

1) How is a good jump in the long jump event determined?

In the long jump event, a good jump is determined by the distance from the takeoff point to where the athlete's body first breaks the plane of the landing pit. This distance is measured in meters and is used to determine the final score.

2) What factors contribute to a good jump in the long jump event?

Several factors can contribute to a good jump in the long jump event, including the athlete's speed, technique, strength, and timing. The runway surface, wind conditions, and weather can also affect the overall performance.

3) Is there a particular angle that results in a better jump in the long jump event?

The optimal angle for a good jump in the long jump event is between 20-30 degrees. This angle allows for a balance between horizontal speed and vertical lift, maximizing the distance of the jump.

4) Can a good jump in the long jump event be improved through training?

Yes, training and proper technique can greatly improve an athlete's performance in the long jump event. Exercises such as plyometrics, strength training, and sprinting can help increase speed and power, while drills and practice can improve technique and timing.

5) What is the world record for the longest jump in the long jump event?

The current world record for the longest jump in the long jump event is held by Mike Powell, who jumped 8.95 meters (29 feet 4 1/4 inches) in 1991. This record has stood for over 30 years and is considered one of the greatest achievements in track and field history.

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