How to get a Fnet vs. time graph from a velocity vs time graph.

[t00kool]

How do you find a Fnet vs time graph from either a position vs time graph, Velocity vs time, or Acceleration vs time. I know how to find Velocity vs time to position and vice versa. since the slope of the position graph tells you the velocity. I can find a acceleration from Velocity. Since slope of velocity gives you acceleration. But how do you do this find a Fnet vs. time graph from Velocity vs Time. What would the varaible even be on the y axis.

Please help.

 

[MarkusNaslund19]

Assuming that the acceleration you have in your Acceleration vs Time graph is the net acceleration, just multiply the acceleration by the mass of whatever it is you are studying to get a Net Force vs Time graph. F=ma ;).

 

[Moetasim]

To get a Fnet vs. time graph from a velocity vs. time graph, you will need to use the equation Fnet = ma, where Fnet is the net force, m is the mass, and a is the acceleration. You can find the acceleration from the velocity vs. time graph by calculating the slope of the line at any given point. Once you have the acceleration, you can plug it into the equation Fnet = ma to find the net force at that point in time. Repeat this for multiple points and plot the net force values on the y-axis against the corresponding time values on the x-axis to get a Fnet vs. time graph.

If you have a position vs. time graph, you can still use the equation Fnet = ma by first finding the acceleration from the velocity vs. time graph as mentioned above. Then, you can use the equation a = Δv/Δt to calculate the change in velocity over a certain time interval. Finally, plug this value of acceleration and the mass into the equation Fnet = ma to find the net force at that point in time. Again, repeat this for multiple points and plot the net force values against time to get a Fnet vs. time graph.

Similarly, if you have an acceleration vs. time graph, you can find the net force at each point by using the equation Fnet = ma and plotting the values on a Fnet vs. time graph.

In summary, to find a Fnet vs. time graph from a velocity vs. time graph, you will need to use the equation Fnet = ma and calculate the net force at different points in time by finding the acceleration from the velocity vs. time graph. The variable on the y-axis of the Fnet vs. time graph will be the net force, measured in Newtons (N).