c5 work energy power

• work

  Fd
• work

  F cos θ (Δx)
• work

  mg cos θ (Δx)
• friction,μ

  [F- ( Ff x g x m )] x d
• W net

  1/2 mv^2 -1/2 mu^2
• kinetic energy

  1/2 mv^2
• work energy theorem

  change in KE = Final KE-initial KE
• ff

  W=-Ff x d
• potential energy

  mgh
• W gravity

  -mg (Yf-Yi)
• spring potential

  Fx =-kx
• power

  W/T
• Tension

  N+T sin θ - mg = 0( Fy)
• tension

  T cos θ - Ff = 0 (Fx)
• Ff

  Tx
• time

  s=1/2 (u+v)t
• max weight

  s=v^2 = u^2 =2as
• elastic potential energy

  Ep=1/2kx ^2