#1
So I have to make a velocity time graph, and I'm given a distance time graph. How the F*ck do i do it?
#2
Velocity is the change in distance over time (ie the slope of your distance-time graph)
#4
Quote by usedillusions
V = D/t


S = D/T

Velocity is speed in one direction only.
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#5
Quote by Yngwi3

S = D/T

Velocity is speed in one direction only.


ummm no, velocity is a vector quantity with both direction and magnitude, speed is a scaler with just magnitude, this is why when they talk about max speed of cars or whatever they don't use a direction. and to ts, to get a VT graph from a DT graph use the slope, to do the opposite use area under the curve.
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Last edited by greatone_12 at Sep 5, 2008,
#6
Quote by greatone_12

ummm no, velocity is a vector quantity with both direction and magnitude, speed is a scaler with just magnitude, this is why when they talk about max speed of cars or whatever they don't use a direction. and to ts, to get a VT graph from a DT graph use the slope, to do the opposite use area under the curve.

ooh I'm just regurgitating what I remember from GCSE physics which looks like what this thread is in aid of.
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#7
Okay it goes like this and this is the best version u'll ever find:

Since u want a velocity time graph, remember V = U + ( A x T )
V=final velocity, U=initial velocity, A=acceleration, T=time
So velocity will be the slope, distance will be at the Y-axis and time at the X-axis.

Some points:
We can also do speed=distance/time as speed is velocity in one direction.
Velocity can be + or -
We can find the distance by finding the area of the graph [as said in the picture]

And remember, Wikipedia it if u dont know



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#8
Is the D/T graph a curved graph, or is the graph a straight line? The velocity is the gradient of the speed time graph