because they can thats why
A barbell. When you lift heavier weights, the inertia generated by their mass makes it easier to lift them off the ground compared to lighter weights that can be harder to control due to their lower inertia.
This is easier to visualize if you rearrange, solving for acceleration: a = F/m. What this means is that a larger force will produce a larger acceleration. It also means that, since mass is in the denominator, in the case of a larger mass, there will be less acceleration. In other words, a more massive object is harder to accelerate (it is harder to speed it up or slow it down).
With more mass to lug around exercise would be more tiring and breathing would be harder making it easier to be more exhausted.
if there is large mass its harder to get moving and harder to stop than an object that has less mass.
The more mass an object has, the harder it is to change its momentum. This is because momentum is directly proportional to mass and velocity, so increasing mass increases the momentum, making it harder to change.
volume
The mass of an object is directly proportional to its inertia. Inertia is the resistance of an object to changes in its state of motion, and a greater mass means more inertia - meaning it will be harder to accelerate or decelerate the object.
cold and warm
Cold
The warm air mass is forced up and over the cold air mass, resulting in the development of a cold front.
it is called a cold front
Large mass