Exam2

1
Exam2 important results (1)

• Know Newtons 1st law
• Newtons 2nd law
• Fnetma both net F and a are vectors gt apply in
  eg.
• any 2 directions for each body
• Know how to draw free body diagrams FBD, find
• force components along a direction,
• label forces, use Newtons 3rd law
• Equilibrium gt aFnet0

2
Exam2 important results (2)

• Work WF.Ds
• Kinetic energy K1/2mv2
• Power PW/Dt, rate of doing work F.v
• Laws of friction FABltmS NAB static
• FABmK NAB
  kinetic
• Tension massless string - same mag. at both ends
• Gravitational Potential Energy Umgh
• Conservation of E KUconst