Mechanical energy is the sum of an object's potential and kinetic energy.
Hence, Option (A) is correct answer.
What is Kinetic Energy ?
Kinetic energy is a form of energy in which an object possesses due to its motion. The kinetic energy of an object is depends up on both the velocity and mass. The S.I unit of Kinetic energy is Joules.
It is expressed as
KE = [tex]\frac{1}{2} mv^2[/tex]
where
KE = Kinetic energy
m = Body's mass
v = Body's velocity
What is Potential Energy ?
Potential energy is a form of energy which is stored in an object. The S.I unit of Potential energy is Joule.
It is expressed as
PE = mgh
where
PE = Potential energy
m = mass
g = acceleration due to gravity
h = height
Kinetic energy + Kinetic energy = Mechanical energy is conserved
KE₁ + PE₁ = KE₂ + PE₂
Thus from the above conclusion we can say that Mechanical energy is the sum of an object's potential and kinetic energy.
Hence, Option (A) is correct answer.
Learn more about the Kinetic energy here: brainly.com/question/25959744
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