Advertisements
Advertisements
प्रश्न
Define Centre of Gravity.
उत्तर १
उत्तर २
The centre of gravity is an imaginary location where the body's whole weight is assumed to be concentrated.
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?
What is the weight of a body placed at the centre of the earth?
State a factor on which the position of the centre of gravity of a body depend? Explain your answer with an example.
A uniform flat circular rim is balanced on a sharp vertical nail by supporting it at point A, as shown in the figure. Mark the position of the centre of gravity of the rim in the diagram 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.
The centre of gravity of a hollow cone of height h is at distance x from its vertex where the value of x is ______.
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)
A metal sphere is hanging from the ceiling of a vehicle. If the vehicle is moving along the horizontal road with uniform acceleration 'a' then the suspended thread of the sphere gets inclined to the vertical at an angle 'θ'. The value of acceleration 'a' is (g = acceleration due to gravity) ______.
Mention the real-life applications of the center of gravity.
