kinetic energy :
The energy due to the movement of the molecule of a body call kinetic energy.
kinetic energy Derivation :
W = F × d
F = ma and d = s
W = ma × s (equation 1)
According third equation of motion.
2as = vf2 - vi2
vi = 0 and vf = v
2as = v2
S = v2 /2a
Pat the value of s in equation 1
W = ma × v2 /2a
W = 1/2 mv2
W = kinetic energy = 1/2 mv2
formula of kinetic energy is K.E = 1/2 mv2
Potential energy definition :
The energy present in the molecules of a body called potential energy.
Potential energy
W = F × d
F = ma and d × h
W = mah
g= a
W = mgh
W = E = potential energy
potential energy = mgh
formula of potential energy is P.E = mgh
