Civil Engineering :: Applied Mechanics and Graphic Statics
- The centre of gravity of a quadrant of a circle lies along its central radius at a distance of
- If the angular distance, 0 = 2t³ ‑ 3t², the angular acceleration at t = 1 sec. is
- If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by
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The vertical reaction at the support ‘A’ of the structure shown in below figure, is
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The member which does not carry zero force in the structure shown in below figure, is
- The dimensions of Gravitational Universal constant ‘G’ are
- The following statement is one of the laws of Dynamic friction
- If ‘l’ is the span of a light suspension bridge who’s each cable carries total weight (w) and the central dip is ‘y’, the horizontal pull at each support, is
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A.
The force of friction always acts in a direction opposite to that in which a body is moving |
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B.
The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction |
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C.
For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed |
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D.
All the above |