Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
Diagram showing the relative position of vertices of the triangle when it is suspended by a pin from the hole A:
The position of vertices changes the triangle is in equilibrium and the centre of gravity lies on the vertical line through the point of suspension as the weight acts along this same line.
APPEARS IN
संबंधित प्रश्न
Give an example of a non-contact force which is always of attractive nature
Explain the motion of a planet around the Sun in a circular path.
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.
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
Explain the term ‘centre of gravity’ of a body.
State two methods of increasing the stability of the body.
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?
