What exactly is meant by a "freely falling" object? what exactly is meant by a "freely falling" object? an object in free fall falls with constant speed. an object in free fall falls with constant velocity. an object in free fall falls under gravity alone with no friction. an object in free fall falls under gravity in air with air resistance but no other resistance.

An object in free fall falls under gravity alone with no friction

Explanation:

Gravity in physics is explained as that force which pulls us down towards the center of the earth; helps us not to float .

What does friction mean?

Friction is a force that acts in an opposite direction to that of the object's movement .

So if the object is not pushed in an opposite direction by any force it will fall freely , it will fall and roll down or it will fall and continue to move in its direction for example an orange falling from a tree ( pulled by gravity) without any force opposing it's movement it will fall continue sliding or rolling down unless there is something hindering it's movement.

Another example is, if you were running and reach a corner and decided to halt your shoes will act as a friction to help you stop immediately.

However if you run in the rain and the road is slippery or there are puddles on the road, when you want to slow down or stop the friction will be less.

The less friction means the harder it is to halt which also occurs when you drive during rain weather .

It is hard to stop the car in time due to less friction on the tires which is reduced by the slippery wet road .

An object will fall and slide down unless some opposing force is there to oppose that movement , that is what free fall means.

clearcutting reproduces a new even-aged stand by completely removing the mature stand.

clearcutting as a silvicultural treatment has several characteristics:

it causes a sudden environmental change

it removes the seed source from the regeneration area

the configuration of the clearcut may affect seed dispersal

it begins a new rotation

it will eliminate some pests that require forest cover

overall, it temporarily removes the forest cover, transforming the forest community and environment.

clearcutting followed by artificial (seeded or planted) regeneration has several advantages:

we can avoid delay in restocking the site

we can introduce a selected species, seed source, and genotype

we can control arrangement and spacing

we can achieve uniformity in the new stand

we can overcome the problems associated with securing sufficient natural regeneration.

the shelterwood method involves the removal of most of the mature stand at the end of the rotation, but a portion of the mature stand is left standing.   the shelterwood method serves three basic purposes:

to prepare the stand for production of abundant seed

to modify the environment in a way that promotes germination and survival of the selected species

to build up the amount and size of advance regeneration to ensure the prompt restocking of the new stand following overstory removal.

the shelterwood method involves a sequence of 3 cuttings:

preparatory cuttings: make the seed trees more vigorous and set the stage for regeneration. see our thinning page for more information.

establishment/seed cuttings: open up enough vacant growing space to allow establishment of the new regeneration.

removal cuttings: uncover the new crop to allow it to fill the growing space.

the residual trees in the shelterwood must:

be sturdy and windfirm

be able to survive exposure

flower and reproduce seed

be the best trees of the mature stand

keep in mind that the shelter trees must not occupy the entire site.   a void must be created in order to make room for the new regeneration. the amount of shelter to leave will depend on the following factors:

species characteristics (seeding and shelter requirements)

the number of cuttings in the cutting sequence (1, 2, or 3)

landowner objectives

the size of the area to be regenerated

the final removal harvest level required to be profitable

the shelter must be removed before it impedes the growth of the new stand or threatens its survival.