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A body with mass 
is thrown from a height of 
above the ground, in a horizontal direction at a speed of 
.
What is the velocity of the body when its kinetic energy is 
?
After what time from the moment of the throw was the kinetic energy of the body ?
Where is the body at that moment?
Figure 1: A body thrown horizontally
is 
.
.
and 
respectively.
