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प्रश्न
What is Gravitational force? Give gravitational units of force.
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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
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.
Explain the term ‘centre of gravity’ of a body.
Answer the following question.
Why do we need to know the center of mass of an object? For which objects, its position may differ from that of the center of gravity?
When this triangular lamina is suspended freely from any one vertex, what is the moment of force produced by its own weight in its rest position?
A hollow ice cream cone has height 6 cm.
- Where is the position of its center of gravity from the broad base?
- Will its position change when it is filled completely with honey? Write Yes or No.
In a uniform gravitational field on Earth, the Centre of Gravity and Centre of Mass are ______.
In a non-uniform gravitational field, how does the Centre of Gravity relate to the Centre of Mass?
