A ball is dropped twice off the same initial height. trial one bounces

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Homework Help Overview

The discussion revolves around a physics problem involving the impulse experienced by a ball dropped from the same height in two trials, where it bounces back with different velocities. The subject area includes concepts of impulse and momentum.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants explore the definition of impulse and its relationship to change in momentum. Questions are raised regarding the calculation of momentum changes in each trial and the implications for impulse.

Discussion Status

Participants are actively engaging with the problem, questioning definitions and exploring the relationship between impulse and momentum. Some have provided insights into the calculations needed, but there is no explicit consensus on the conclusions regarding the impulses in each trial.

Contextual Notes

There is a focus on the time the ball is in contact with the ground during the first trial, and participants are considering how this may affect the impulse in comparison to the second trial. The discussion is framed within the context of homework constraints and the need for careful analysis of the given data.

melofc
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a ball is dropped twice off the same initial height. trial one bounces back with a velocity of 3m/s and trial 2 bounces back with a velocity of 2m/s. the time the ball is in contact with the ground for trial 1 is 0.01s. are the impulses on the ball the same for both trials or is it less in trial 2?
 
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What do you think, and why?
 


How would you define the Impulse?
 


change in momentum
 
melofc said:
change in momentum
Ok. What are the momentum changes in each case? And what is the other way of specifying impulse? (Working out speeds and times is easy, from the facts you have.)
 

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