210 pounds is the mass of a person. 210 kilograms is the weight of a person. So with this information, if we consider that a person is 210 pounds and a car is 210 kilograms, we would say that a person is 210 in kg (or, equivalently, 210 in pounds).
So 210 in kg is the mass of a person, or 210 in pounds.
The thing about mass is that it’s a measure of how much something weighs. The other thing about mass is that it’s also a measure of how much force it exerts.
In other words, it’s a number that tells us how heavy it is. One way to use mass is to use it to calculate how much energy a particular object has. For example, if your dog weighs 100 pounds, then your dog exerts 210 pounds of force when you hold it. If that 210 pounds of force is equal to the mass of your dog, then your dog weighs 210 pounds.
The thing about the mass of a dog is that some dogs can weigh more than others. For example, some dogs are larger than others. People with larger dogs tend to be larger people. As such, you can say that the mass of a dog is a measure of the dog’s “size” and also a measure of how much force it exerts.
So you can see that, even though an item has a mass, if the weight of that item is smaller than the mass, the weight of that item will be less than the mass.
In the case of a dog, let’s say a big red poodle named Charlie, my friend was able to fit a bag in her mouth because she weighs 210 kilograms, and she was in her poodle form. Now, how much weight does a 210-kilogram dog actually weigh? Well, let’s assume it weighs 200 kilos. So 210 kilos = 200 x 210 = 28,800 pounds.
Well, 210 kilograms! Yeah, you got it. You would assume that a 210-kilogram dog would weigh about 200 kilos, which is about what your average person would weigh, let alone 210 kilograms. In terms of strength, this dog is about as strong as a normal man of average weight. Now, let’s imagine that, just for the sake of argument, we are not allowed to actually do anything with it.
Well, the question is, is a 210-kilogram dog actually strong enough to do the things that a dog is supposed to be able to do? That’s a whole other topic.
The 210-kilogram standard weight dog is the one that is capable of pulling a car to the top of a tall building (which is what a 210-kilogram dog would be capable of doing), so it is entirely possible this puppy is strong enough to pull a truck or a car. And even if its strength is not, it is not physically impossible for this dog to do so. After all, dogs are known to be able to lift a train and a car.