Advertisements
Advertisements
प्रश्न
What is Gravitational force? Give gravitational units of force.
Advertisements
उत्तर
Earth exerts a force of attraction on each object. This force is due to gravity and its magnitude is directly proportional to the mass of the object. This force is known as gravitational force and its units are gravitational units.
In the MKS system, the gravitational unit of force is kilogramme force i.e., kgf. In CGS system it is gramme force, gf.
संबंधित प्रश्न
State a factor on which the position of the centre of gravity of a body depend? Explain your answer with an example.
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.
Give scientific reason for the following:
It is easier to push a boy standing on one leg than on both legs.
Even though the Tower of Pisa is leaning through an angle it does not fall.
Can the CG be situated outside the material of the body? Give an example.
Explain why a ship loaded with light goods is more liable to be overturned than the one loaded with heavy goods.
Explain the term ‘centre of gravity’ of a body.
In ______ equilibrium, the centre of gravity remains at the same height when it is displaced.
In a uniform gravitational field on Earth, the Centre of Gravity and Centre of Mass are:
