Answer:
the answer is c Strength of the electric field
Explanation:
it is that bcause
 
        
                    
             
        
        
        
Answer:
The force must he apply to the sled is of F= 764.4 N.
Explanation:
m= 60 kg
g= 9.8 m/s²
μ=0.3
W= m*g
W= 588 N
Fr= μ*W
Fr= 176.4 N
F= W + Fr
F= 764.4 N
 
        
                    
             
        
        
        
<em>It's a test on Geography!
</em>
        
                    
             
        
        
        
Work equals force × displacement (distance between initial point and end point is displacement)
if u follow this it becomes
work = 50 × 2 which is equal to 100
comment if u have more questions