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प्रश्न
Explain why Standing passengers are not allowed on the upper deck of a double-decker bus.
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उत्तर
The centre of gravity is raised and on an inclined road, the bus may topple.
संबंधित प्रश्न
The distance between two bodies is doubled. How is the magnitude of the gravitational force between them affected?
'The centre of gravity of a freely suspended body always lies vertically below the point of suspension'.
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.
Give scientific reason for the following:
There are chances of toppling when a truck takes a sharp turn especially when it is not fully loaded
Explain why One leans forward while climbing up a hill.
Explain why a tight rope-walker, often holds a long pole in his hands when in action.
When this triangular lamina is suspended freely from any one vertex, what is the moment of force produced by its own weight in its rest position?
