The resultant of two equal forces P making an angle is given by
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Mechanical Engineering · all questionsEngineering Mechanics
Engineering Mechanics
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A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.
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If a number of forces are acting at a point, their resultant is given by
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The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of rad/s2, is
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Moment of inertia of a circular section about an axis perpendicular to the section is
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According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. ) is given by (where, A = Area of the section, = Moment of inertia of the section about an axis passing through its C.G. and h = Distance between C.G. and the parallel axis.)
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The friction experienced by a body, when at rest, is known as
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The energy possessed by a body, for doing work by virtue of its position, is called
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The coefficient of friction depends upon
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For any system of coplanar forces, the condition of equilibrium is that the
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Center of gravity of a thin hollow cone lies on the axis at a height of
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The time of flight of a projectile on downward inclined plane depends upon
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In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is
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The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.
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A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is
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Which of the following is not the unit of energy?
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Which one of the following statements is not correct?
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Moment of inertia of a hollow circular section, as shown in the below figure about X-axis, is
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The forces, whose lines of action are parallel to each other and act in the same directions, are known as
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The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is
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