Mechanics - Chapter 2

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  • Created by: Peter
  • Created on: 22-03-14 15:03
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  • Kinematics of a particle moving in a straight line
    • suvat
      • v^2=u^2+2as
      • s=((u+v)/2)t
      • s=ut+1/2at^2
      • v=u+at
      • s=vt-1/2at^2
    • Other equations
      • Trapezium = 1/2(a+b)h
      • distance = speed x time
      • Gravity = 9.81 ms^-1
      • A particle slowing down (deceleration or retardation) has negative a.
    • Graphs
      • speed-time, gradient is acceleration
      • speed-time, area underneath is distance travelled
    • Units
      • Time (t) = seconds (s)
      • displacement (s) = metres (m)
      • velocity (v or u) = metres per second (ms^-1)
      • acceleration (a) = metres per second per second (ms^-2)

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