A woman has a mass of 55 kg. (a) What is her weight while standing on earth?

Video transcript

Hey, everyone. So this is a pretty straightforward weight problem. Let's see what it's saying. Mass is a property of matter and weight is a force. It then asks, what is the approximate weight of a man on earth? If he has a mass of 85 kg. Our multiple choice answers here are a newtons. B for 242 newtons C 626 newtons or D newtons. So the key here is to recall the equation for weight where weight is equal to mass multiplied by gravity, we are told the mass and the problem And that's 85 kg. And then we can recall that gravity is a constant 9. m per second squared. So as long as we recall that constant, it's a very simple plug in CHG. We plug that into our calculators and we get 833 newtons. And so that aligns with answer choice. A, that's all we have for this one. We'll see you in the next video.