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प्रश्न
Explain why a tight rope-walker, often holds a long pole in his hands when in action.
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उत्तर
A tight rope-walker carries a long stick in his hand to maintain the CG such that the vertical line passes through the rope.
संबंधित प्रश्न
A uniform half meter rule balances horizontally on a knife-edge at 29 cm mark when a weight of 20 gf is suspended from one end
1) Draw a diagram of the arrangement
2) What is the weight of the half meter rule?
Where is the centre of gravity of a uniform ring situated?
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.
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.
Fig. shows the dimensions of an acute angled triangle. By geometrical construction mark the C.G. of the triangle.
Can the CG be situated outside the material of the body? Give an example.
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.
To find the Centre of Gravity of a laminar (2D) object, how many orientations should you suspend it from?
Why is it beneficial for engineers to design tall structures with a low Centre of Gravity?
