The hypothesis because its very hard to make and it confounds me
        
                    
             
        
        
        
Answer: The answer is A for sure
Explanation:
That is, there will be no acceleration. If you are sitting at rest in a chair and the upward push of the chair is equal to the downward pull of gravity, you will stay at rest in the chair. ... You now have an unbalanced force acting on you and therefore, according to Newton's First Law, your motion is going to change.
Plz give brainlest :)
 
        
             
        
        
        
I believe the answer is elements!!!!