A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in
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Civil Engineering · all questionsApplied Mechanics And Graphic Statics
Applied Mechanics And Graphic Statics
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A vehicle weighing w kg is to run on a circular curve of radius r. If the height of its centre of gravity above the road level is h and the distance between the centres of wheels is 2a, the maximum velocity, in order to avoid over turning, will be
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The unit of force in C.G.S. system of units, is called
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A string of length 90 cm is fastened to two points ‘A’ and ‘B’ at the same level 60 cm apart. A ring weighing 120 g is slided on the string. A horizontal force ‘P’ is applied to the ring such that it is in equilibrium vertically below ‘B’. The value of ‘P’ is:
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A body of weight w placed on an inclined plane is acted upon by a force P parallel to the plane which causes the body just to move up the plane. If the angle of inclination of the plane is and angle of friction is , the minimum value of P, is
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If the linear velocity of a point on the rim of a wheel of 10 m diameter, is 50 m/sec, its angular velocity will be
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The centre of gravity of a trapezoidal dam section whose top width is a, bottom width is b and the vertical side is a, from its vertical face is
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Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down
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If two forces of 3 kg and 4 kg act at right angles to each other, their resultant force will be equal to
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The masses of two balls are in the ratio of 2 : 1 and their respective velocities are in the ratio of 1 : 2 but in opposite direction before impact. If the coefficient of restitution is , the velocities of separation of the balls will be equal to
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When a body of mass M1 is hanging freely and another of mass M2 lying on a smooth inclined plane () are connected by a light index tensile string passing over a smooth pulley, the acceleration of the body of mass M1, will be given by
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If two bodies of masses M1 and M2(M1 > M2) are connected by alight inextensible string passing over a smooth pulley, the tension in the string, will be given by
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The resultant of the forces acting on a body will be zero if the body
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For a body moving with simple harmonic motion, the number of cycles per second, is known as its
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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
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One end of an elastic string of natural length ‘l’ and modulus ‘X’ is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance ‘x’, held at rest and then released.
The motion is
The motion is
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A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is
(i) 5000 Nm
(ii) 5000 kg.m
(iii) 5000 J
(i) 5000 Nm
(ii) 5000 kg.m
(iii) 5000 J
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The product of mass and velocity of a moving a body, is called
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One half of a vibration of a body, is called
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The C.G. of the shaded area of the below figure whose curve OM is a parabola from y-axis, is
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