V0 = 0 m/s Vf = ?? m/s A = ?? m/s2 Solve Acceleration Problem: 1600m in 5min

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SUMMARY

The discussion focuses on solving an acceleration problem for a runner completing a 1600m race in 5 minutes. The runner accelerates for the first 15 seconds and then maintains a constant velocity for 4 minutes, leaving 250m to cover. To determine the required acceleration for the remaining distance, participants emphasize the importance of applying the five kinematic equations to analyze the runner's velocity and time constraints effectively.

PREREQUISITES
  • Understanding of kinematic equations, specifically the five BIG Kinematic Equations.
  • Knowledge of basic physics concepts such as acceleration, velocity, and distance.
  • Ability to perform calculations involving time, distance, and speed.
  • Familiarity with problem-solving techniques in physics, particularly in motion analysis.
NEXT STEPS
  • Study the five BIG Kinematic Equations in detail.
  • Practice problems involving acceleration and constant velocity scenarios.
  • Learn how to calculate final velocity using initial velocity, acceleration, and time.
  • Explore real-world applications of kinematic equations in sports and motion analysis.
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding motion dynamics, particularly in sports contexts.

poptaguser
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Homework Statement


A runner wishes to complete a 1600m races in 5.0 min. She accelerates to racing velocity in the first 15s of the race then travels at a constant velocity for the next 4.0min. At this point she still has 250m to go. What must her acceleration be over the remaining distance in order for her to finish the race next time?


Homework Equations


The 5 BIG Kinematic Equations


The Attempt at a Solution


Δdτ = 1600m
ΔT = 300 seconds
 
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Ok, you're going to have to make more of an attempt than that- you just listed the given information! Try to get some more relevant information, like: What remaining distance is left for the runner when she has to start accelerating? What's her velocity at that point? How much time does she have to cover that extra distance? If you consider these variables and how they fit into the kinematics equations, you should be able to figure it out.
 

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