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Frequency, f : #revolutions per unit time

Frequency, f : #revolutions per unit time. f = revolutions / time Units: (1/sec)=sec -1 =Hertz (Hz) rpm (#rev/min) rps (#rev/sec). r. Period. Period T : time for 1 revolution Unit: sec, min, h For an oscillating spring For a pendulum /g). Relating Frequency and Period.

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Frequency, f : #revolutions per unit time

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  1. Frequency, f :#revolutions per unit time • f = revolutions / time Units: • (1/sec)=sec-1=Hertz (Hz) • rpm (#rev/min) • rps (#rev/sec) r

  2. Period • Period T : time for 1 revolution • Unit: sec, min, h • For an oscillating spring • For a pendulum /g)

  3. Relating Frequency and Period

  4. Tangential Speed in terms of T or f v=2pr/T v=2prf

  5. Fulcrums • Moment Arm Distance – distance from the fulcrum At static equilibrium F₁d₁ = F₂d₂

  6. Torque • Force applied over a distance of rotation • Units: N*m • Example: wrench F₊=Fd at a right angle from the radius where d is the radius F₊=F sinө

  7. Angular Momentum • L = mvr • Linear momentum equals mass times velocity times the radius of the

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