#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)

#3

V = D/t

#4

V = D/t

S = D/T

Velocity is speed in one direction only.

#5

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.

*Last edited by greatone_12 at Sep 5, 2008,*

#6

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.

#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

Now what do I get for helping you out?

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

Now what do I get for helping you out?

#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