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प्रश्न
Explain why One leans forward while climbing up a hill.
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उत्तर
A person going uphill has to bend forward but while coming down has to bent backward, this is to keep the CG at the centre of the body and between his feet.
संबंधित प्रश्न
On what factor does the position of the center of gravity of a body depend?
'The position of the centre of gravity of a body remains unchanged even when the body is deformed'.
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.
A boy of mass 40 kg runs up a height of 30 steps, each 20 cm high. Find:
(i) The force of gravity acting on the boy.
(ii) The work done by the boy against gravity. (Take g = 9.8 ms−2)
In ______ equilibrium, the centre of gravity remains at the same height when it is displaced.
