Power Work done

    Cards (16)

    • Wd = Fs
      work done linear = force x displacement
    • P = Wd/t
      Power linear = work done x time
    • P = Fv
      Power linear = force x velocity
    • Wd=Wd =Tθ T\theta
      Work done Angular = Torque x Angular displacement
    • P=P =Tω T\omega
      Power angular = Torque x Angular velocity
    • Eff=Eff=Pout/PinP_{out}/P_{in}
      Efficiency = power out / power in
    • WD = Fs
      Work done = Force x displacement
    • 1 Nm = 1 J
    • Wd in Joules J
    • Power in watts W
    • 1 J / s = 1 W
    • Ep=E_p =mgh mgh
      Potential Energy = mass x gravity x height
    • Ep=E_p =Ek E_k
      Potential energy = Kinetic energy
    • Ekrot=Ek_{rot}=12Iω2\frac{1}{2}I\omega^2
      Rotational Kinetic energy = 0.5 x moment of inertia x angular velocity ^2
    • Eklinear=Ek_{linear} =12mv2 \frac {1}{2} mv^2
      Linear kinetic energy = 0.5 x mass x velocity ^2
    • To solve angular power questions first solve Torque and how many revolutions and convert to radians
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