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Force  Time graph Question 
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#1
Dec1307, 11:21 PM

P: 30

Hi everybody,
I was given a set of physics problems and some of them ask us to find work. The problem is, we are given a forcetime graph as opposed to a forcedistance graph. My question was whether there was a way of finding work done using a forcetime graph. I don't see how it could be done and i haven't found anywhere where you can do it but I have a feeling it can be done. Does anyone know? Please reply either if it can or can't be done... Thank you 


#2
Dec1307, 11:29 PM

P: 47

Not if the force and dt are the only info given...



#3
Dec1307, 11:31 PM

P: 47

Sry, ignore my last post. Yes, you can.



#4
Dec1307, 11:34 PM

P: 30

Force  Time graph Question
Sorry, how can you find it out?
I tryed the area under the graph but that doesn't work 


#5
Dec1307, 11:35 PM

P: 30

Sorry, how can you find it out?
I tried the area under the graph but that doesn't work 


#6
Dec1407, 12:31 AM

P: 47

What kind of forcetime graphs are they? I'm guessing they're impulse graphs (large force over relatively short period of time); if so, you can assume the impulse approximation. What does this tell you about the work done (or more precisely, the distance traveled due to a force)?



#7
Dec1407, 01:30 AM

P: 30

Yes, they are graphs with large forces over small amounts of time.
I'm sorry but I can't see the connection between this graph and work and/or distance. If it helps, one of the questions talks about a railway engine of x mass moving from rest along a straight track. It then gives you the forcetime graph. 


#8
Dec1407, 06:47 PM

P: 30

It's ok now...I've figured out the answer
Thanks everyone for your help 


#9
Sep1809, 04:08 AM

P: 7

Hi,
I have the same question as you. How did you find the work done using force  time graph?? Thanks. 


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