What is the Correct Distance with Force from Both Sides?

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Homework Help Overview

The discussion revolves around a physics problem involving forces acting on a stationary object and the calculation of distance traveled. The subject area includes dynamics and kinematics, specifically focusing on the effects of multiple forces over time.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to calculate the distance traveled by an object under the influence of two forces, questioning the conditions under which these forces act. There is a focus on whether the first force remains active after a specified time period.

Discussion Status

Multiple interpretations of the problem are being explored, particularly regarding the continuity of the first force. Some participants have provided their calculations and expressed confusion about the original poster's result, indicating a productive exchange of ideas without reaching a consensus.

Contextual Notes

There is ambiguity in the problem statement regarding the duration of the first force's application, which is a point of contention among participants. The forum rules emphasize the necessity of showing work for verification.

TheMath_boy
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Homework Statement
Force of 10N acts on a stationary object of mass 10 kg. after 10 second, a force of 20 N acts on it for 5 s in the opposite direction. what is the distance travelled by the object?
Relevant Equations
f=ma
I am getting distance 87.5m. Is this correct?
 
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Welcome to PF. :smile:

Please type your work into the forum so we can check it. Thank you.
 
TheMath_boy said:
Homework Statement:: Force of 10N acts on a stationary object of mass 10 kg. after 10 second, a force of 20 N acts on it for 5 s in the opposite direction. what is the distance traveled by the object?
Relevant Equations:: f=ma

I am getting distance 87.5m. Is this correct?
The question is ambiguous. Does the first force go away after the 10 seconds or continue? Have you quoted it verbatim?

Either way, I don't get your answer.
Now I do, thanks @Delta2
 
Last edited:
TheMath_boy said:
I am getting distance 87.5m. Is this correct?
I suggest you read the forum rules, which specifically state that you have to show your work, not just an answer.
 
haruspex said:
Either way, I don't get your answer.
I get 87.5m if i consider that the first force continues to be applied and 75m if it doesnt.
 
Delta2 said:
I get 87.5m if i consider that the first force continues to be applied and 75m if it doesnt.
Ahem, yes.
 
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