What is the direction of the impulse in this problem?

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    Impulse Momentum
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Homework Help Overview

The discussion revolves around a problem involving impulse and momentum, specifically focusing on determining the direction of the impulse based on given values and calculations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the calculation of impulse and its relationship to momentum, with one participant expressing uncertainty about determining the direction of the impulse despite calculating its magnitude correctly.

Discussion Status

There is an ongoing exploration of the problem, with one participant indicating they have resolved their confusion regarding the direction of the impulse. Another participant suggests a careful reading of the problem to clarify the direction.

Contextual Notes

One participant mentions that the impulse is in the negative direction, indicating a potential assumption or interpretation that is being examined in the context of the problem.

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impusle.PNG
1. Homework Statement

In picture above

Homework Equations



impulse = Δp[/B]

The Attempt at a Solution



4.28NS = Δp
4.28NS = pfinal - pinitial
4.28NS + 0.18kg*0.16m/s = pfinal
(4.28NS + 0.18kg*0.16m/s)/.18kg = vfinal
vfinal = 39.77777778m/s

Now i got the direction incorrect but the magnitude correct. i am unsure of how i was supposed to
determine the direction. ?
 

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NEVERMIND I FIGURED IT OUT!
 
The answer is -7.8m/s
 
isukatphysics69 said:
View attachment 224409
Now i got the direction incorrect but the magnitude correct. i am unsure of how i was supposed to
determine the direction. ?
Read the problem more carefully. The impulse is in the negative direction.
 
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