A tectonic plate. When they move, they cancreate earthquakes!
It is a glacier.
plant
If it's a large area of land, continental (although an airmass would be described as such only after significant time/distance over land, it would still be maritime at the coast).
A large land mass is commonly called a continent.
A large mass moving slowly would have more momentum than a small mass moving slowly because momentum is a product of mass and velocity. Even if both masses are moving at the same speed, the larger mass would still have more momentum due to its greater mass.
A continent.
continent
An example of a land mass is a continent or a country. Even maybe a very large island.
A large land mass that protrudes out from a continent is called a Subcontinent. One example of subcontinent is India.
Asia and Europe share a large mass of land known as Eurasia.
The object that is moving at a constant speed will slow down. Its new velocity will be determined by the original constant speed along with the new combined mass of the moving object and the additional "large mass."
It is a large land mass