Advertisements
Advertisements
प्रश्न
The figure shows three pieces of cardboard of uniform thickness cut into three different shapes. On each diagram draw two lines to indicate the position of the centre of gravity G.
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Explain the motion of a planet around the Sun in a circular path.
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.
Fig. shows the dimensions of an acute angled triangle. By geometrical construction mark the C.G. of the triangle.
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?
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)
Write about the experiment to find the centre of gravity of the irregularly shaped plate.
Why is it beneficial for engineers to design tall structures with a low Centre of Gravity?
