Advertisements
Advertisements
प्रश्न
What is Gravitational force? Give gravitational units of force.
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.
APPEARS IN
संबंधित प्रश्न
What is the position of the centre of gravity of a rectangular lamina?
What is the position of the centre of gravity of a cylinder?
Where is the centre of gravity of a uniform ring situated?
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.
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.
A right-angled triangle cardboard piece is placed as shown in fig. 7. Redraw the diagram showing the relative position of the vertices of the triangle when it is suspended by a pin from the hole A. Explain why the position changes?
The centre of gravity of a hollow cone of height h is at distance x from its vertex where the value of x is ______.
Can the CG be situated outside the material of the body? Give an example.
Explain why a tight rope-walker, often holds a long pole in his hands when in action.
If mean radius of earth is R, its angular velocity is ro and the acceleration due to gravity at the surface of the earth is g, then the cube of the radius of the orbit of satellite will be ____________.
