Physics momentum and impulse questions

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Homework Help Overview

The discussion revolves around a physics problem involving momentum and impulse, specifically focusing on the effects of a force acting on an object over a period of time. Participants are exploring the relationship between impulse, momentum, and velocity changes in a given scenario.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to understand the definitions of impulse and momentum, questioning whether they should combine masses and how to apply the impulse equation. There is also a focus on the relationship between impulse and change in momentum.

Discussion Status

The discussion is active, with participants seeking clarification on the concepts involved. Some guidance has been offered regarding the relationship between impulse and momentum, but there is no explicit consensus on the understanding of these terms.

Contextual Notes

Participants express confusion regarding the definitions and relationships between impulse and momentum, indicating a need for further exploration of these concepts. There is mention of a specific scenario involving a single mass and a force applied over time.

Ereny
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an 8.0 N force acts on a 5.0 kg object for 3.0 sec. what impulse is given to the object? what change in momentum does to his impulse cause? if the object's initial velocity is 25 m/s determine the final velocity of the object?

i have the right answers because my teacher gave them to use .. but i don't know how to get there.. am i suppose to combine both masses? and use the impulse equation which is p=f.t ??

i am really confused and i would really appreciate any help thanks.

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Ereny said:
an 8.0 N force acts on a 5.0 kg object for 3.0 sec. what impulse is given to the object? what change in momentum does to his impulse cause? if the object's initial velocity is 25 m/s determine the final velocity of the object?

This is all really straightforward. It is asking you for the impulse. Well, what is the definition of impulse?
 
isn't it a force.. i am really confused btw the meaning of impulse and momentum
 
Ereny said:
an 8.0 N force acts on a 5.0 kg object for 3.0 sec. what impulse is given to the object? what change in momentum does to his impulse cause? if the object's initial velocity is 25 m/s determine the final velocity of the object?

i have the right answers because my teacher gave them to use .. but i don't know how to get there.. am i suppose to combine both masses?
There is only one mass mentioned here, there is no other mass to "combine" it with.
and use the impulse equation which is p=f.t ??
If an impulse acts on a body it causes a change of momentum of that body. Equate the impulse to the change of momentum as: F·∆t = m·∆v

Q: what are the units of momentum?
 

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