We don't know the change in velocity, so can't answer.
 
        
             
        
        
        
Answer:
30 m/s
Explanation:
Speed is distance over time. 60 meters / 2 seconds, = 30 m/s. 
 
        
             
        
        
        
I believe that the best statement which explains why you can do this is C. <span>The extension cord is made of copper wire, which is a good conductor of electricity; however, it is covered with plastic, an insulator, which does not allow the electrical current to flow to you.
Copper is known to be one of the best conductors of electricity, and plastic can shield you from shock.
</span>
        
                    
             
        
        
        
10/70×360°
=51.4°
hope thus helps