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The centre of gravity of a uniform triangular lamina lies at:
The centre of gravity of a uniform circular ring lies:
The centre of gravity of a uniform solid right circular cone of vertical height h lies on its axis at a distance of:
Match the column A with column B. Column-A | Column-B (a) Moment of force | (i) Point where the entire weight of a body appears to act (b) Centre of gravity | (ii) Force × perpendicular distance from axis of rotation (c) Clockwise moment | (iii) When a force tends to rotate a body in direction opposite to clock hands (d) Anticlockwise moment | (iv) Sum of all moments = 0 (e) Equilibrium condition | (v) When a force tends to rotate a body in the same direction as clock hands
A non-uniform kite is hanging freely from the branch of a tree as shown. Study the figure and answer the following:
(a) What is the position of centre of gravity of a triangular lamina? (b) When this triangular lamina is suspended freely from any one vertex, what is the moment of force produced by its own weight in its rest position?
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