erosion
the force that acts on rock to change its shape or volume is stress.
When any force that is not exactly canceled by another force acts on an oblect, the oblect's speed or direction of motion or both must change. Any such change is known as an 'acceleration'.
Change of the body's momentum = (force on the body) x (length of time the force acts on it)
Change of the body's momentum = (force on the body) x (length of time the force acts on it)
Change of the body's momentum = (force on the body) x (length of time the force acts on it)
Pressure and/or Heat act on a rock to change it
A variable force is that force whose magnitude, direction both change as it acts.
Erosion
Yes.
Yes, in fact, it is necessary. If any net force acts on an object, the velocity will change.Yes, in fact, it is necessary. If any net force acts on an object, the velocity will change.Yes, in fact, it is necessary. If any net force acts on an object, the velocity will change.Yes, in fact, it is necessary. If any net force acts on an object, the velocity will change.
A force that acts on rock to change its shape or volume called stress. Tension is the stress that sketched rock so that is becomes thinner in the middle.
A change in momentum exists whenever a force acts on an object, and the magnitude of the change is dependent on the mass of the object on which the force acts.