I did up a neat excel sheet which allowed me to calculate some simple approximated values from a few given parameters:

Constants/Inputs |
Value |
Units |

Wheel Radius | 0.0508 | m |

Gear ratio | 0.333333333 | – |

kv | 149 | – |

Input Voltage | 28 | V |

Max Current | 40 | A |

Mass of rider and kart | 100 | kg |

Drag coefficient | 0.804 | – |

Frontal Area | 0.6 | m2 |

How many motors? | 2 | – |

Density of Air | 1.225 | kgm-3 |

Resistance of Motor | 0.021 | ohm |

## Dependants |
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Derived Constants |
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kt | 0.064089293 | – |

wheel circumference | 0.319185814 | m |

no load rps | 4172 | rps |

Max power output | 2240 | W |

Max Stall Torque | 2.563571719 | Nm-1 |

Graph Slope | -0.000614471 | Nm-1rps-1 |

At Standstill |
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Max Wheel Torque | 7.690715156 | Nm-1 |

Force exerted on ground | 302.7840612 | N |

Acceleration @ Standstill | 3.027840612 | ms-2 |

@35kmh |
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wheel rps @35kmh | 27.85211504 | rps |

motor rps @35kmh | 83.55634512 | rps |

Drag @35kmh | 23.35161459 | N |

Power loss @35kmh | 207.5958537 | W |

Torque @35kmh | 2.512228793 | Nm-1 |

Power Output @35kmh | 209.9126561 | W |

Since the power output of the motor is roughly equal to the ~~fudged~~ approximated power loss due to air drag of the kart at 35kmh, and given that the motor would **definitely** not perform at 100%, I can say that our kart will **not** even remotely hit 35kmh. I might be wrong though.

I actually secretly hope it does go above 35 =/

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