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
