Halliday Resnick Krane Chapter 2 Problem 30: Juggling Five Balls

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Homework Help Overview

The discussion revolves around a problem from Halliday Resnick Krane Chapter 2 concerning the dynamics of juggling five balls. Participants are exploring the timing and mechanics involved when juggling, particularly focusing on the time each ball spends in the air and the sequence of handling the balls.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to calculate the time a ball is in the air and questioning how to approach the juggling sequence when balls are released at different times. There are inquiries about the implications of handling balls sequentially and the total number of touch events per minute.

Discussion Status

The discussion is ongoing, with participants expressing confusion about how to proceed with the problem. Some have offered thoughts on counting touch events and the timing of each ball's release, but there is no clear consensus on the next steps to take.

Contextual Notes

There appears to be uncertainty regarding the assumptions about the timing of ball releases and the mechanics of juggling, which may affect the calculations being discussed.

vibha_ganji
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Homework Statement
A juggler juggles 5 balls with two hands. Each ball rises 2 meters above her hands. Approximately how many times per minute does each hand toss a ball?
Relevant Equations
y= y0 + vt + (at^2/2)
If each ball rises two meters, then the time is in the air is equal to around 1.28 seconds. After this, what am I supposed to do? I feel really stuck. If all of the balls are released at different times, how am I supposed to find the answer?
 
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What will happen if you don't handle each of the other balls before you re-handle the first ball?
 
.. or start with, how many times a minute does a given ball touch a hand? How many touch events are there in total per minute?
 
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vibha_ganji said:
If all of the balls are released at different times, how am I supposed to find the answer?
By counting?
 

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