Advertisements
Advertisements
प्रश्न
Give scientific reason for the following:
It is easier to push a boy standing on one leg than on both legs.
Advertisements
उत्तर
(i) We keep our body balanced on two feet by keeping the center of gravity of our body between our feet. It acts normal to the sea level vertically downwards. If COG goes out we fall or we get unbalanced.
A boy standing on both legs has his COG in balanced position and is thus in stable equilibrium but a boy standing on one leg has his COG in unbalanced position which makes him quite unstable and hence it is easier to push him.
APPEARS IN
संबंधित प्रश्न
The distance between two bodies is doubled. How is the magnitude of the gravitational force between them affected?
What is the position of the centre of gravity of a rectangular lamina?
A uniform flat circular rim is balanced on a sharp vertical nail by supporting it at point A, as shown in the figure. Mark the position of the centre of gravity of the rim in the diagram by the letter G.
Fig. shows the dimensions of an acute angled triangle. By geometrical construction mark the C.G. of the triangle.
Where does the position of centre of gravity lie for a circular lamina
Explain why One leans forward while climbing up a hill.
Explain why a ship loaded with light goods is more liable to be overturned than the one loaded with heavy goods.
Explain why Standing passengers are not allowed on the upper deck of a double-decker bus.
In a uniform gravitational field on Earth, the Centre of Gravity and Centre of Mass are ______.
