The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics
The following statement is one of the laws of Dynamic friction

The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction

All of these

For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed

The force of friction always acts in a direction opposite to that in which a body is moving

The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction

All of these

For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed

The force of friction always acts in a direction opposite to that in which a body is moving

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Applied Mechanics and Graphic Statics
The centre of gravity of the trapezium as shown in below figure from the side is at a distance of

(h/2) × [(b + 2a)/(b + a)]

(h/3) × [(b + 2a)/(b + a)]

(h/2) × [(2b + a)/(b + a)]

(h/3) × [(2b + a)/(b + a)]

(h/2) × [(b + 2a)/(b + a)]

(h/3) × [(b + 2a)/(b + a)]

(h/2) × [(2b + a)/(b + a)]

(h/3) × [(2b + a)/(b + a)]

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Applied Mechanics and Graphic Statics
A point subjected to a number of forces will be in equilibrium, if

Algebraic sum of the forces is zero

Two resolved parts in any two directions at right angles are equal

Sum of resolved parts in any two directions at right angles, are both zero

Algebraic sum of the moments of the forces about the point is zero

Algebraic sum of the forces is zero

Two resolved parts in any two directions at right angles are equal

Sum of resolved parts in any two directions at right angles, are both zero

Algebraic sum of the moments of the forces about the point is zero

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Applied Mechanics and Graphic Statics
The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t²+ 5. The ratio of the accelerations after 5 sec and 3 sec will be

2

3

4

5

2

3

4

5

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Applied Mechanics and Graphic Statics
The locus of the instantaneous centre of a moving rigid body, is

Straight line

Centroid

Involute

Spiral

Straight line

Centroid

Involute

Spiral

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Applied Mechanics and Graphic Statics
The time period of a simple pendulum depends on (i) Mass of suspended particle (ii) Length of the pendulum (iii) Acceleration due to gravity

Only (i)

Both (ii) and (iii)

Both (i) and (iii)

All are correct

Only (i)

Both (ii) and (iii)

Both (i) and (iii)

All are correct

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics The centre of gravity of the trapezium as shown in below figure from the side is at a distance of

Applied Mechanics and Graphic Statics A point subjected to a number of forces will be in equilibrium, if

Applied Mechanics and Graphic Statics The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t²+ 5. The ratio of the accelerations after 5 sec and 3 sec will be

Applied Mechanics and Graphic Statics The locus of the instantaneous centre of a moving rigid body, is

Applied Mechanics and Graphic Statics The time period of a simple pendulum depends on (i) Mass of suspended particle (ii) Length of the pendulum (iii) Acceleration due to gravity

Applied Mechanics and Graphic Statics
The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics
The centre of gravity of the trapezium as shown in below figure from the side is at a distance of

Applied Mechanics and Graphic Statics
A point subjected to a number of forces will be in equilibrium, if

Applied Mechanics and Graphic Statics
The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t²+ 5. The ratio of the accelerations after 5 sec and 3 sec will be

Applied Mechanics and Graphic Statics
The locus of the instantaneous centre of a moving rigid body, is

Applied Mechanics and Graphic Statics
The time period of a simple pendulum depends on (i) Mass of suspended particle (ii) Length of the pendulum (iii) Acceleration due to gravity