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
A uniform half meter rule balances horizontally on a knife-edge at 29 cm mark when a weight of 20 gf is suspended from one end
1) Draw a diagram of the arrangement
2) What is the weight of the half meter rule?
Give an example of a non-contact force which is always of attractive nature
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 centre of gravity of a freely suspended body always lies vertically below the point of suspension'.
The centre of gravity of a uniform ball is ______.
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.
Can the CG be situated outside the material of the body? Give an example.
Write about the experiment to find the centre of gravity of the irregularly shaped plate.
When balancing a ruler on your finger, the point of balance is the ruler's:
