Question

Which two formulas are used to calculate potential and kinetic energy?

Answer 1

`\boxed{\bold { \large { \boxed {KE=(1)/(2) mv^2 \ , \ PE=mgh}}}}`

Step-by-step explanation:

Kinetic energy formula

`\displaystyle KE=(1)/(2) mv^2`

Potential energy formula

`\displaystyle PE=mgh`

`\displaystyle KE \Rightarrow \sf kinetic \ energy \ (J)`

`\displaystyle PE \Rightarrow \sf potential \ energy \ (J)`

`\displaystyle m \Rightarrow \sf mass \ (kg)`

`\displaystyle v \Rightarrow \sf velocity \ (m/s)`

`\displaystyle g \Rightarrow \sf acceleration \ of \ gravity\ (m/s^2)`

`\displaystyle h \Rightarrow \sf height \ (m)`

Answer 2

For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters. Notice that gravitational potential energy has the same units as kinetic energy, kg m2 / s2!