Asked by rosie
                A 2000 kg car is moving with a velocity of 50 km/hr. What is its kinetic energy? If the car reduces its speed by half, by what factor is the kinetic energy changed? 
            
            
        Answers
                    Answered by
            bobpursley
            
    ke= 1/2 M V^2
I will be happy to critique your thinking.
    
I will be happy to critique your thinking.
                    Answered by
            rosie
            
    ke=1/2*2000kg*50
ke=50000
    
ke=50000
                    Answered by
            bobpursley
            
    No.  first, you have to have velocity in m/s.  Convert km/hr.
Second, thequatioon says square velocity.
    
Second, thequatioon says square velocity.
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