Practice problem

Pounds to Kilograms (lb to kg) — Conversion & Practice

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Contributors

Jonathan Heller
Caroline K

Picture of Brad Keselowski's car during the 2012 Kobalt Tools 400 NASCAR Race — Brad Keselowski's car during the 2012 Kobalt Tools 400 NASCAR Race. Image source: By Brian Neudorff CC BY-SA 4.0, via Wikimedia Commons

NASCAR has a rule that says if a driver is under $180\text{ lbs}$ , $10\text{ lbs}$ must be added to the car for every $10\text{ lbs}$ lighter than $180$ the driver is, with the max penalty being capped at $40$ added pounds. $\\$ One day, Formula 1 driver and LeMans winner Nico Hulkenberg decides that he wants to switch into NASCAR. Unfortunately, he only knows his weight in kilograms, which is $70\text{ kg}$ . How much weight would have to be added to his car for it to be legal?