# What is the weight of an object (on earth) that has a mass of 45 kg?

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- oubaasLv 71 month ago
According to SI agreement , g = 9.80665 , therefore :

weight = m*g = 45*9.80665 = 440 N (just 2 sign. figures)

- NCSLv 71 month ago
Depends on your local value for "g."

For g = 9.8 m/s², the weight is

F = m*g = 45kg * 9.8m/s² = 441 N

which should be rounded to 440 N owing to the number of significant digits in "45 kg".

Hope this helps!

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