I want to know how much torque I need for my engine.
Imagine a wheel with a motor in the center. One like this:
Let's say the wheel measures 400mm, weighs 10KG, what is the formula to make that calculation?
I think the formula is (correct me if I'm wrong): 𝑇=𝐹⋅𝑎
Diameter: 400mm = 40cm = 0.4m Force: 10kg = 100N 𝑇=𝐹⋅𝑎 𝑇=100⋅0.4 𝑇=40Nm
That is, I need a motor with a torque of at least 40 Nm to work (in theory, in practice it would be about 50 Nm, to say something), right?
I ask because I am not an expert, do you see any errors?