The calculation for kinetic energy is this 
KE = 1/2mv^2 
KE = 1/2(50)(7^2)
KE = 1/2(49•50)
KE = 1225 kgm^2/s^2. 
Or simply 1225 J. 
She possess this much energy when she runs.
        
                    
             
        
        
        
Answer:
The answer is D. Balanced forces
Hope it helps.......... pls mark as brainliest
 
        
             
        
        
        
<span>-- the product of the net charges on the objects;. -- the distance between the centers of their net charges. (Pretty much identical to the formula for gravitational force)</span>
        
                    
             
        
        
        
<h2><u>Projectile</u><u> </u><u>motion</u><u>:</u></h2>
<em>If</em><em> </em><em>an</em><em> </em><em>object is given an initial velocity</em><em> </em><em>in any direction and then allowed</em><em> </em><em>to travel freely under gravity</em><em>, </em><em>it</em><em> </em><em>is</em><em> </em><em>called a projectile motion</em><em>. </em>
It is basically 3 types. 
- horizontally projectile motion
-  oblique projectile motion
-  included plane projectile motion 
 
        
                    
             
        
        
        
Answer:
They are both forms of energy.  One has to do with hearing and the other a little bit of light.
Explanation: