Calculate the amount of work done if you use a 100N force to push a 50kg box 5m across the kitchen floor.
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
So if the formula for work is force times displacement times cosine(theta), you'd plug in the numbers
100x5 (since there's no angle in the problem, cosine(theta) isn't used
100x5 = 500
So the answer would be B.
Hope that helps!
                                
             
                    
              
              
                
                
We know, W = F * s
Here, F = 100 N
s = 5 m
Substitute their values, 
W = 100 * 5
W = 500 J
In short, Your Answer would be Option B
Hope this helps!
                                
             
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I am sure it is frequency
        
             
        
        
        
Explanation:
well there is nothing there and it could be different by diffrent objects, idk
 
        
                    
             
        
        
        
Answer:
1.98s
Explanation:
The time taken to hit the ground is given by 
h=ut+ 1/2 at^2
but u =0
so we have 
h=1/2at^2
making t the subject 
t=√2h/g
√2×19.6/10
1.98s
 
        
             
        
        
        
Answer:
10000W
Explanation:
work=1000*200=200000
then 
P=work/time=200000/20=10000W