With the aid of a set of balance scales an Iron Monger was able to weigh goods up to 40lb, in increments of 1lb, by cutting up a uniform iron bar 40 inches long weighing 40lb.(adsbygoogle = window.adsbygoogle || []).push({});

Having an infinitely thin hacksaw blade he cut the bar 39 times into 1 inch lengths and produced forty 1lb weights.

What would be the minimum number of cuts required to obtain the same result of being able to weigh goods of up to 40lb in 1lb increments on his set of balance scales.

**Physics Forums - The Fusion of Science and Community**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Forty 1lb Weights

Loading...

Similar Threads - Forty Weights | Date |
---|---|

Why don't we measure our weight in newtons? | Dec 9, 2017 |

The weight of gravity | Feb 25, 2016 |

Nutrie Skinne weight loss | Jun 4, 2013 |

Anyone into lifting weights? | Apr 9, 2013 |

Women: What a difference forty years can make | Jan 1, 2007 |

**Physics Forums - The Fusion of Science and Community**