Sound travels at approximately 1,100 feet per second (766 miles per hour). Radio waves travel at the speed of light, which is approximately 186,000 miles per second. This means that in the time radio waves travel the length of a football field, light can travel further than all the way around the world.
 
        
                    
             
        
        
        
Answer:
A- 18
Explanation:
It wont let me explain how
 
        
             
        
        
        
Normal force is the force exerted when an object is on an surface. So an example could be a pile of books on top of a table. 
 
        
             
        
        
        
We know, acceleration = final velocity - initial velocity / time
Here, if velocity is increasing, then, 
Final velocity > initial velocity, in that case, acceleration is also increasing, as it is directly proportional to velocity
In short, Your Answer would be "Yes"
Hope this helps!
        
                    
             
        
        
        
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