If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then i. a force is required to move the body upwards ii. a force is required to move the body downward iii. the body will not be in equilibrium The correct answer is

Applied Mechanics and Graphic Statics
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then i. a force is required to move the body upwards ii. a force is required to move the body downward iii. the body will not be in equilibrium The correct answer is

only (i)

both (i) and (ii)

both (i) and (iii)

only (ii)

only (i)

both (i) and (ii)

both (i) and (iii)

only (ii)

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Applied Mechanics and Graphic Statics
A rigid body is in a stable equilibrium if the application of any force

Can raise the CG of the body but cannot lower it

Tends to lower the CG of the body

None of above

Neither raises nor lowers the CG of the body

Can raise the CG of the body but cannot lower it

Tends to lower the CG of the body

None of above

Neither raises nor lowers the CG of the body

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Applied Mechanics and Graphic Statics
A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is

4

8TC

6 7i

8

4

8TC

6 7i

8

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Applied Mechanics and Graphic Statics
Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

6.3 m/sec

7.3 m/sec

9.3 m/sec

8.3 m/sec

6.3 m/sec

7.3 m/sec

9.3 m/sec

8.3 m/sec

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Applied Mechanics and Graphic Statics
A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is

10 kg

100 kg

40 kg

60 kg

10 kg

100 kg

40 kg

60 kg

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Applied Mechanics and Graphic Statics
A cube on a smooth horizontal surface

Can be in any of these states

Cannot be in stable equilibrium

Cannot be in unstable equilibrium

Cannot be in neutral equilibrium

Can be in any of these states

Cannot be in stable equilibrium

Cannot be in unstable equilibrium

Cannot be in neutral equilibrium

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics A rigid body is in a stable equilibrium if the application of any force

Applied Mechanics and Graphic Statics A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is

Applied Mechanics and Graphic Statics Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

Applied Mechanics and Graphic Statics A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is

Applied Mechanics and Graphic Statics A cube on a smooth horizontal surface

Applied Mechanics and Graphic Statics
A rigid body is in a stable equilibrium if the application of any force

Applied Mechanics and Graphic Statics
A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is

Applied Mechanics and Graphic Statics
Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

Applied Mechanics and Graphic Statics
A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is

Applied Mechanics and Graphic Statics
A cube on a smooth horizontal surface