Recent content by crowned

Hi! I have been on a renewable energy kick lately, and learned that big batteries can be used to help regulate the frequency of the power grid. But how are they sized!? If I am connecting a BESS to a power grid to help regulate the frequency, I've seen regulation of say, 25MW of regulation...

Thanks so much for your help on this. Graphs are coming out perfectly.

Oh my gosh, how did that work! Expressed in fps, it works fine. y-intercept 88 fps, x intercept 150' So to change the y-axis to mph, I just multiply the right side of the equation by 60mph/88fps, right? Sheesh, didn't see that one coming.

Well, everything is expressed in mph.

Speed as a function of position. I'd like to know how fast the truck is going at a given displacement.

Hi--thanks for the response. Well, I worked my way to the final equation you posted (it matches up to the final equation in my original post--may not have been clear, I didn't realize I could write in LaTeX). The problem is that I calculate a stopping distance of 150' by using average speed *...

Thanks for your response. However, I understand that part already--what I'm trying to work out is the equation for velocity as a function of position.

This isn't actually a homework question, it's for a vehicle safety project at work, but I think it fits in this forum. Homework Statement A truck is traveling down the road at 60 mph, and begins to decelerate at a rate of 0.8 g. I'd like to find the total distance it takes the truck to...