What is the formula for kinetic and potential energy?

Answer 1

Kinetic= KE= 1/2 MV^2 m= mass, v= velocity

Potential= PgH= mgh m=mass, g= gravity, h= height

PE=potential energy (joule)

m=mass (kg)

g=gravitaional acceleration (m/sec^2)

h= height (m) elevation

ex.

Given Solution.

m= 5 PE= m g h

h=100m =(5 kg) (9.75 m/sec^2)(100m)

g=9.75m/sec^2 =PE 4875 joules

Answer 2

• Kinetic energy: 1/2 m v2 ; where m is mass and v is the velocity
• Potential energy: mgh ; where m is mass, g is gravity acceleration, h is height
• For a falling object, the summation of both energies is constant assuming no resistance or friction forces are existing.

Answer 3

• mgh for potential energy and 1/2mv2

Answer 4

A gain in one equates to a loss in the other: ΔPE = -ΔKE

Extended: PEf - PEi = KEi - KEf

Put initial and final energies on same side: PEi + KEi = PEf + KEf

Answer 5

1/2 m v2