An example of linear motion is an athlete running 100m along a straight track. Linear motion is the most basic of all motion. ... Neglecting the rotation and other motions of the Earth, an example of linear motion is the ball thrown straight up and falling back straight down.
 
        
             
        
        
        
Answer:
I believe its C
Explanation:
I'm sorry if its wrong... 
 
        
                    
             
        
        
        
Answer:
C. forums
Explanation:
Forums are internet sites where users can meet to discuss different topics through the use of messages thereby forming chat rooms. An internet forum can be in form of a question and answer site. Most websites have internet forums where users can meet and discuss or ask questions. Sometimes there may be moderators that ensure that the posted messages are acceptable based on guidelines.