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प्रश्न
Explain the motion of a planet around the Sun in a circular path.
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उत्तर
A planet moves around the Sun in a nearly circular path for which the gravitational force of attraction on the planet by the Sun provides the necessary centripetal force required for circular motion.
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संबंधित प्रश्न
What is the position of the centre of gravity of a cylinder?
Explain how you will determine experimentally the position of the centre of gravity for a triangular lamina (or a triangular piece of cardboard).
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.
Give scientific reason for the following:
There are chances of toppling when a truck takes a sharp turn especially when it is not fully loaded
The centre of gravity of a hollow cone of height h is at distance x from its vertex where the value of x is ______.
Where does the position of centre of gravity lie for a circular lamina
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)
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?
