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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?

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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



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