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प्रश्न
State a factor on which the position of the centre of gravity of a body depend? Explain your answer with an example.
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उत्तर
- The position of the centre of gravity of a body of given mass depends on its shape, i.e., on the distribution of mass in it. For example, the centre of gravity of a uniform wire is at its midpoint. But if this wire is bent into the form of a circle, its centre of gravity will then be at the centre of the circle.
- The centre of gravity does not have to always be contained within the body's substance. For example, a hollow sphere or ring's centre of gravity is the place in the middle where there is no substance.
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संबंधित प्रश्न
A square cardboard is suspended by passing a pin through a narrow hole at its one corner. Draw a diagram to show its rest position. In the diagram, mark the point of suspension by the letter S and the centre of gravity by the letter G.
The figure shows three pieces of cardboard of uniform thickness cut into three different shapes. On each diagram draw two lines to indicate the position of the centre of gravity G.
Following Fig shows piece of cardboard of uniform thickness cut into different shapes. Draw two lines to indicate the position of centre of gravity G.
Following Fig shows piece of cardboard of uniform thickness cut into different shapes. Draw two lines to indicate the position of centre of gravity G.
Fig. shows the dimensions of an acute angled triangle. By geometrical construction mark the C.G. of the triangle.
Give scientific reason for the following:
It is easier to push a boy standing on one leg than on both legs.
Where does the position of centre of gravity lie for a circular lamina
To find the Centre of Gravity of a laminar (2D) object, how many orientations should you suspend it from?
