If the kinetic energy of a falling apple is 5.2 joules and its potential energy is 3.5 joules, what is its mechanical energy?

To determine the values the total mechanical energy of the given problem we can first identify the values given Given are:
1.       Kinetic Energy = 5.2 Joules
2.       Potential Energy = 3.5 Joules
Solution:
The formula for mechanical energy is
a.       Mechanical energy is total energy of both kinetic and potential hence,
i.      ME = PE + KE                                   
ii.      ME = 3.5 + 5.2                                                            
iii.      ME = 8.7 Joules

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is