Recent content by ruteckyb

I see, the problem I was having was I neglected to ignore the mass. Thank you.

PS this is not homework I am building this EV, I need to know what size engine.

I can solve for horsepower needed at a given speed. For example: with the above constants it is 22.3hp to maintain 60mph. However I can not take a power amount and result with the max speed. I could use trial and error perhaps, until I get results with the required hp ratings but this is a very...

Problem is to solve for max speed of an electric vehicle, given is the HP of motor (3 total), and the wind+rolling resistance of the vehicle at 60mph. Wind resistance should be regarded as a constant for this problem. Also given is EV weight with cargo and rider Motor HP = 5, 10 , 20...