[2] Energy Equations

Total Energy

K + U

• k = kinetic energy

• u = potential energy (spring & gravitational)

Kinetic Energy

½mv²

• m = mass

• v = velocity

Gravitational Potential Energy

mgh

• m = mass

• g = gravity (9.81 m/s if Earth)

• h = height dropped from

Spring Potential Energy

½kΔx²

• k = spring constant

• Δx = change in displacement

Work

Fx, Pt, PΔv, ΔE

• F = force

• x = displacement

• P = power

• t = time

• Δv = change in velocity

• ΔE = change in energy

Power

w/Δt, Fv

• w = work

• Δt = change in time

• F = force

• v = velocity