Kinetic energy is the energy that is associated with motion. It is the energy possessed by an object that is moving. It is calculated from one-half the product of the mass and the square of the velocity of the object. From this, we can calculate the mass of the object. We do as follows:
KE = mv^2/2
500 J = m(5 m/s)^2 / 2
m = 40 kg
        
                    
             
        
        
        
I would use meter and second.
Hope this helps.
        
             
        
        
        
Answer:
it would be 39.2 m/s
Explanation:
After one second, you're falling 9.8 m/s. After two seconds, you're falling 19.6 m/s, and so on.
 
        
             
        
        
        
Vaporization of a sample of liquid is a phase transition from the liquid phase to the gas phase.