Civil Engineering :: Applied Mechanics
-
A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be
-
A particle moves along a straight line such that distance x traversed in t seconds is given by x = t2(t + 1), the acceleration of the particle, will be
-
The Law of Polygon of Forces states that
-
Parallelogram Law of Forces states, "if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by
-
Which one of the following statements is true ?
-
The beam shown in below figure is supported by a hinge at A and a roller at B. The reaction RA of the hinged support A of the beam, is
-
The product of mass and velocity of a moving a body, is called
-
Engineer's units of force, is
-
The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is
Whatsapp
Facebook
|
A.
if a polygen representing the forces acting at point in a body is closed, the forces are in equilibrium |
|
B.
if forces acting on a point can be represented in magnitde and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by the closing side of the polygon |
|
C.
if forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side of the polygon, taken in opposite order |
|
D.
if forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium. |