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संबंधित प्रश्न
A square cardboard is suspended by passing a pin through a narrow hole at its one corner. Draw a diagram to show its rest position. In the diagram, mark the point of suspension by the letter S and the centre of gravity by the letter G.
'The position of the centre of gravity of a body remains unchanged even when the body is deformed'.
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?
Even though the Tower of Pisa is leaning through an angle it does not fall.
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)
Mention the real-life applications of the center of gravity.
In a uniform gravitational field on Earth, the Centre of Gravity and Centre of Mass are:
