Answer:
1.4x10²J
Explanation:
Given parameters:
Weight of the bowling ball  = 25N
Height of building  = 11m
Unknown:
Potential energy when it has fallen half the height = ?
Solution:
Potential energy is the energy at rest in a body.
 It is mathematically expressed as;
     P.E  = mgh
m is the mass
g is the acceleration due to gravity
h is the height
 The height here is half of the building;
       h  = [tex]\frac{11}{2}[/tex]m
Now,
  Weight = mg = 25N
So;
    P.E = 25 x [tex]\frac{11}{2}[/tex]  = 1.4x10²J
