Question

simple question: how do you find velocity and speed?

Answer 1

so many different websites had different answers that confused me. is looking for velocity the same thing as looking for average velocity???

Answer 2

Velocity would be the instantaneous velocity at some time t. While average velocity is the velocity over some time period.
V(t)=velocity at time t
V/t= average veloctiy

Answer 3

How do you find velocity? depends on the information you have.
How do you find speed? speed is a scalar. So you find the magnitude of the Velocity vector.

Answer 4

@omgitsana Have you got a more specific question you're trying to find the velocity/speed of?

Answer 5

I am given a chart of position and time and it is asking me to look for the velocity. i graphed the chart and there are 7 velocities. but i dont know how to look for the velocity

Answer 6

@PhoenixFire sorry i don't know how to get more specific than this :/

Answer 7

Have you got an equation for the position chart?
Is it asking you to find the velocity at a certain time?

If you have position, you can find the derivative of that to find the velocity.
But since it's a chart, and you said there are 7 velocities, I'm guessing it's asking you to find the one that matches the position chart?

Answer 8

no there is no equation

Answer 9

well there is a chart that i have to fill out and it asks for the start-time and end-time so maybe there is a certain time

Answer 10

The instantaneous velocity of a position versus time graph will be the slope of the function at any given time. If you're given the function for the position, just take it's derivative and plug in the time at which you want to know the velocity. If you're not given an equation, you'll have to calculate the slope using normal graphing methods (slope=rise/run).

The average velocity for any period within the graph will be \[\frac{\Delta s}{\Delta t}\]
Maybe you should post the image/table so we can see the actual question.