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R 9:
STABILI
    TY
STABLE
   An object is said to be stable if it does not topple
    (jatuh) easily.






                                        B
                 A
CENTRE OF GRAVITY
 Centre of gravity= point of equilibrium
 Centre of gravity= is the point at which whole
  weight of the object may be considered to act.
 The position of the centre of gravity of an object

  depends on the shape of the object.
FACTORS AFFECTING THE
  STABILITY OF OBJECT




              A    B
A    B
QUESTIONS
   Which of the following objects is the most stable?




       A                                     C
                          B
QUESTIONS
 How      Answer…

 can          Reducing the height of
 make          chair ( Lower the
               centre of gravity)
 this
 chair        Large the base Area
 more
 stable?
IMPORTANCE OF
            STABILITY
                    A race car is
                    heavy, has a
                   low centre of
                   gravity and a
                  large base area


   Chairs and
   tables are
 objects with a
low centre of
  gravity and
   wide base.

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Chapter 9 03

  • 2. STABLE  An object is said to be stable if it does not topple (jatuh) easily.  B A
  • 3. CENTRE OF GRAVITY  Centre of gravity= point of equilibrium  Centre of gravity= is the point at which whole weight of the object may be considered to act.  The position of the centre of gravity of an object depends on the shape of the object.
  • 4. FACTORS AFFECTING THE STABILITY OF OBJECT A B A B
  • 5. QUESTIONS  Which of the following objects is the most stable? A C B
  • 6. QUESTIONS How Answer… can  Reducing the height of make chair ( Lower the centre of gravity) this chair  Large the base Area more stable?
  • 7. IMPORTANCE OF STABILITY A race car is heavy, has a low centre of gravity and a large base area Chairs and tables are objects with a low centre of gravity and wide base.