Where is the C.G. of a Cylinder?
Solution.
Hence, the centre of gravity of cylinder is at the midpoint of the axis of the cylinder.
Where is the C.G. of a
i. Scalene Triangle
ii. Cylinder
Two birds of exactly same mass are kept in two cages A and B. Cage A is made of glass and cage B is made of wire net. Both cages are kept on a weighting machine . While the birds are sitting on a bar fitted inside the cage the reading of the weighting machine is noted. If the birds now start flying and hovering in air in their cages , how do the readings in the weighting machine change.
a bird is sitting on the floor of a closed glass cage and the cage is in the hand of a girl. will the girl experience any change in the weight of the cage when the bird
(a) starts flying in the cage with a constant velocity
(b) flies upward with acceleration
(c) flies downwards with acceleration