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प्रश्न
What is centre of gravity ?
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उत्तर
The centre of gravity of an object is the point through which the entire weight of the object appears to act.
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संबंधित प्रश्न
Explain the motion of a planet around the Sun in a circular path.
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.
What is Gravitational force? Give gravitational units of force.
A boy of mass 40 kg runs up a height of 30 steps, each 20 cm high. Find:
(i) The force of gravity acting on the boy.
(ii) The work done by the boy against gravity. (Take g = 9.8 ms−2)
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?
In ______ equilibrium, the centre of gravity remains at the same height when it is displaced.
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.
