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  How do I find the time needed for an object to travel a certain amount of distance if I have the distance it traveled, the mass of the object, and it was pulled with a constant force?

+ 0 like - 2 dislike

Is there any equation to find the time taken for an object to travel a certain distance if I am given the distance the object traveled, the mass of the object, and a constant force that was used to pull the object? For example, if an object with a mass of 1 kg travels a distance of 100 meters with a constant force of 9.81 newtons without stopping, is there a way to calculate the time it took the object to travel the distance of 100 meters?

Closed as per community consensus as the post is not grad-level
asked Jul 3, 2017 in Closed Questions by efake2002 (-10 points) [ no revision ]
recategorized Jul 4, 2017 by dimension10
Most voted comments show all comments

Someone please answer!!

This is not graduate-level. 500+ rep users please up(down)vote my closevote if you (dis)agree here.

SIR please. Instead of asking people to up(down) vote it, you can just tell me if there is any equation. I've been trying to find this for over 2 hours now. PLEASE!@Dilaton 


@efake2002 I understand, but PO is not for this level of questions.

You can try PhysicsForums or the relatively new  Physics Problems Q&A to get help with your question.

@Dilaton Please answer sir. I'll close this thread myself. Just provide me the equation. I have an assignment due soon. Please! Just give me an equation. Thanks in advance.

This is a high level question. I've already tried those forums and they have requested me to post the question in this website. Please sir. Just answer the question and I'll get outta here.@Dilaton 

1 Answer

+ 0 like - 0 dislike

Yes, there is such an equation, but it involves also the initial velocity, which is unknown, according to you. So the answer is uncertain without the initial velocity.

The equation itself is derived from the distance equation: $L(t)=L(0)+V_0\times t + F\times t^2/2m$. So your time is expressed via $D=L-L(0)$, $V_0$, and $F$. You just solve the square equation and find $t_{1,2}(D,V_0,F,m)$.

answered Jul 4, 2017 by Vladimir Kalitvianski (102 points) [ revision history ]
edited Jul 4, 2017 by Vladimir Kalitvianski

Such basic high-school level questions are off-topic for PO and should therefore not get answered here.

@Dilaton: I agree and I think my answer will prevent it from being a permanent top question on PhysicsOverflow.

@Vladimir ok, I understand your motivation.

But it is still better to not answer such questions. Otherwise we will get more and more of them which would reduce the value of the site for those interested in high-level discussions.

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