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0 votes	1778 views	1 answer	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 9 years ago by Civil Engineer
0 votes	772 views	2 answers	The apparent weight of a man in a moving lift is less than his real weight when it is going down with updated 9 years ago by Civil Engineer
0 votes	764 views	1 answer	The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is updated 9 years ago by Civil Engineer
0 votes	771 views	1 answer	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 9 years ago by Civil Engineer
0 votes	785 views	1 answer	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 9 years ago by Civil Engineer
0 votes	794 views	1 answer	If two forces of 3 kg and 4 kg act at right angles to each other, their resultant force will be equal to updated 9 years ago by Civil Engineer
0 votes	765 views	1 answer	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 9 years ago by Civil Engineer
0 votes	786 views	1 answer	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 9 years ago by Civil Engineer
0 votes	769 views	1 answer	For perfectly elastic bodies, the value of coefficient of restitution is updated 9 years ago by Civil Engineer
0 votes	784 views	2 answers	Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and updated 9 years ago by Civil Engineer