Letter: Splitting hairs

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The Independent Culture
Sir: Yes - "it's the physics, stupid!" (letter, 27 February). But who's splitting hairs?

The weight of the vehicle is indeed the gravitational pull of the nearest large "mass" (the earth) on the mass of the vehicle. But as this depends on the distance between the two bodies, unless the driver of the vehicle plans to go to take it to the top of Everest, or more significantly, to the moon, the weight and the mass are virtually the same. So, except for Brussels' urge to be pedantic, why mess about with "maximum laden weight"?