Thats good. This website is ment to help not for cheating.
You should look over your past questions though, yu ask very similar questions. The questions basically answer themselves at times.
He already told you the answer. Its speed.
Velocity can be defined as speed/acceleration in a given direction.
Velocity, speed, and acceleration are very simmilar basically the same thing.
I hope this helps you out ;P
Which name is given to the type of friction that objects falling through air experience?
Air resistance
Hope this helps ;P
The higher the value of the coefficient of friction, the greater the resistance to sliding.
