Thursday, December 24, 2009

How to find the average velocity and speed from the gradient of a distance time graph?

If the gradient is know how do you find the average speed and velocity from this?How to find the average velocity and speed from the gradient of a distance time graph?
the velocity is the gradient of the graph


so find the change in the y axis


find the change in the x axis


then find y/x


that will be the velocity





average speed is the total distance travelled from start to finish divided by the total time from start to finish


so


total distance/total timeHow to find the average velocity and speed from the gradient of a distance time graph?
Velocity or Speed = distance / time





If you have the gradient, and the distance/time graph is a constant straight line, then the gradient is the speed or velocity.





You could also use the equation v = 2*pi*f*A*cos(2*pi*f)t if it's a graph of the motion of something like a pendulum. v is velocity, pi is 3.14, f is the frequency the object's moving at, A is the amplitude of the object's wavelength, and t is the time period of the object's oscillation.
we find average velocity by using a formula





Average velocity=Position/time = Displacement/time
v= d/t

No comments:

Post a Comment