Physics Here....

[niassu]

Hello eveyone,
excuse me I want to if the acceleration of free fall means that air resistance should be excluded to get the ratio g=9.8m/s2?
and plz what is meant by the terminal velocity?
help me soon ,any help is appreciated in advance, thanks. :|

 

[PlanetMaster]

excuse me I want to if the acceleration of free fall means that air resistance should be excluded to get the ratio g=9.8m/s2?

Yes.

plz what is meant by the terminal velocity?
help me soon ,any help is appreciated in advance, thanks. :|

Terminal velocity is the term for the state an object reaches when the force of drag acting on it is equal to the force of gravity acting on it. When an object reaches its terminal velocity, it no longer accelerates, remaining at whatever velocity it was already traveling or else slowing down.

 

[niassu]

thanks Planetmaster

 

[niassu]

can anyone explain the the centripetal force plz.
thanks

ya.. and one more thing would u recommend books?

 

[PlanetMaster]

Any motion in a curved path represents accelerated motion, and requires a force directed toward the center of curvature of the path. This force is called the centripetal force which means "center seeking" force. The force has the magnitude m(v²/r).

Regarding book recommendation, do you need for course coverage or revision?

 

[niassu]

Any motion in a curved path represents accelerated motion, and requires a force directed toward the center of curvature of the path. This force is called the centripetal force which means "center seeking" force. The force has the magnitude m(v²/r).

Regarding book recommendation, do you need for course coverage or revision?

well thanks for ur attention Planetmaster,and about the book I would like to know the course coverage book plz and I want it to include practical in it to cover the syllabus
thanks again.

 

[niassu]

is anybody here

 

[niassu]

Good website try it

http://www.astarmathsandphysics.com/a_l ... _menu.html

and then thank me lol.

 

[XPFMember]

Assalamoalaikum!!
thanks niassu for ur contribution...i hope it's useful for people doing IGCSE's!!