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P is the force acting on a body whose mass is m and acceleration is f. The equation P - mf = 0, is known as
updated 10 years ago by Civil Engineer
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904
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The apparent weight of a man in a moving lift is less than his real weight when it is going down with
updated 10 years ago by Civil Engineer
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913
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The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is
updated 10 years ago by Civil Engineer
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924
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A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is,
updated 10 years ago by Civil Engineer
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923
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Two shots fired simultaneously from the top and bottom of a vertical tower with elevations of 30° and 45° respectively strike a target simultaneously. If horizontal distance of the target from the tower is 1000 m, the height of the tower is
updated 10 years ago by Civil Engineer
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920
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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
updated 10 years ago by Civil Engineer
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901
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The maximum frictional force which comes into play, when a body just begins to slide over the surface of a an other body, is known
updated 10 years ago by Civil Engineer
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912
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The acceleration of a train starting from rest at any instant is where V is the velocity of the train in m/sec. The train will attain a velocity of 36 km/hour after travelling a distance of
updated 10 years ago by Civil Engineer
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903
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For perfectly elastic bodies, the value of coefficient of restitution is
updated 10 years ago by Civil Engineer
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913
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2
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Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and
updated 10 years ago by Civil Engineer
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