Advertisements
Advertisements
Question
Write about the experiment to find the centre of gravity of the irregularly shaped plate.
Solution
1. Make three holes in the lamina
2. Suspend the lamina from the optical pin through one of the holes
3. Suspend the plumb line from the pin and mark the position of the plumb line on the lamina’
4. Draw lines on the lamina representing the positions of the plumb line.
5. Repeat the above steps for the holes.
6. Label the intersection of the three lines as X, the position of the center of gravity of the lamina.
APPEARS IN
RELATED QUESTIONS
Define the term 'centre of gravity of a body'.
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'.
'The centre of gravity of a freely suspended body always lies vertically below the point of suspension'.
The centre of gravity of a uniform ball is ______.
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
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)
