What is the weight of a 75kg mass?

Answer 1

Depends on the gravitational force applied on mass (if there was any). On earth at sea level gravitational force is 9.8 m/s^2 so 75kg mass weights 75*9.8 Actually I am not sure about it, I also trying to do vise verse operation. I weight 75kg at sea level, what ,is my mass ? According to the newton's second law Fnet = m*a so the number 75 I see on scale must be the net force which is 75 = mymass * 9.8 hence mymass is 7,65 kg that is I am not that fat !

Answer 2

The use of the word 'weight' is a misnomer - the kilogram is a measure of mass, which is independent of the environment in which it is measured. Weight is measured in Newtons - a 75kg body on Earth has a weight of around 735 Newtons, while on the moon the weight would be only 120 Newtons.

Hence, while your mass would be 75 kilograms in both cases, you would feel about a sixth of your weight on Earth.

Note that weight scales are calibrated for Earth, so they would record your mass as a little over 12kg, however they would be incorrect.

Answer 3

That's exactly the reason why you have to learn to stop using "kilogram" for weight.

On Earth, a body with 75 kilograms of mass weighs 735.5 newtons (165.3 pounds).

But you want to ignore the difference between mass and weight, and you want to

say that a 75-kg body weighs 75 kilograms.

You've been able to get away with that as long as the body stayed on Earth.

But now that you've shipped it to the moon, you're in a very awkward situation ...

now, somehow, 75 kilograms weighs 12.4 kilograms ! Doesn't that bother you

just a little ? If somebody asks about it, what kind of smoke and mirrors will you

need in order to explain it to him ?

You can't go on using "kilogram" for weight, because it's not. "Kilogram" is mass ...

the amount of 'stuff' that an object has in it. It doesn't change, no matter where

the object goes. What changes is the force of gravity that attracts that mass to

other masses, like moons and other planets. That's called "weight". It depends on

the mass of the body and on what else is nearby.

Your 75 kilograms of mass weighs 165.3 pounds on Earth, and the same

75 kilograms of mass weighs 27.4 pounds on the moon.

In metric units, 75 kilograms of mass weighs 735.5 newtons on Earth, and the

same 75 kilograms of mass weighs 121.7 newtons on the moon.

And in the space vehicle, in between, coasting from the Earth toward the moon,

it still has 75 kilograms of mass, but it weighs ... zero.

Answer 4

The weight of a 75kg mass on Earth is approximately 735 newtons. Weight is a force that is calculated by multiplying the mass of an object by the acceleration due to gravity.

Answer 5

165.35 pounds

Answer 6

13 pounds on the Moon.