A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be

Applied Mechanics and Graphic Statics
A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be

Zero

None of these

10 m/sec

5 m/sec

Zero

None of these

10 m/sec

5 m/sec

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Applied Mechanics and Graphic Statics
On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts

Away from the wall at its upper end

Towards the wall at its upper end

Upwards at its upper end

Downwards at its upper end

Away from the wall at its upper end

Towards the wall at its upper end

Upwards at its upper end

Downwards at its upper end

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Applied Mechanics and Graphic Statics
For a self-locking machine, the efficiency should be

More than 50%

0.5

None of these

Less than 60%

More than 50%

0.5

None of these

Less than 60%

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Applied Mechanics and Graphic Statics
If two forces are in equilibrium, then the forces must(i) Be equal in magnitude(ii) Be opposite in sense(iii) Act along the same line

(i) and (iii)

All (i), (ii) and (iii)

Only (i)

(i) and (ii)

(i) and (iii)

All (i), (ii) and (iii)

Only (i)

(i) and (ii)

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Applied Mechanics and Graphic Statics
The maximum displacement of a particle executing S.H.M. corresponds to

Minimum kinetic energy and minimum potential energy

Maximum kinetic energy and maximum potential energy

Zero kinetic energy and maximum potential energy

Zero potential energy and maximum kinetic energy

Minimum kinetic energy and minimum potential energy

Maximum kinetic energy and maximum potential energy

Zero kinetic energy and maximum potential energy

Zero potential energy and maximum kinetic energy

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Applied Mechanics and Graphic Statics
Kinetic friction may be defined as

Friction force acting when the body is in motion

Friction force acting when the body is just about to move

Angle between normal reaction and resultant of normal reaction and limiting friction

Ratio of limiting friction and normal reaction

Friction force acting when the body is in motion

Friction force acting when the body is just about to move

Angle between normal reaction and resultant of normal reaction and limiting friction

Ratio of limiting friction and normal reaction

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be

Applied Mechanics and Graphic Statics On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts

Applied Mechanics and Graphic Statics For a self-locking machine, the efficiency should be

Applied Mechanics and Graphic Statics If two forces are in equilibrium, then the forces must(i) Be equal in magnitude(ii) Be opposite in sense(iii) Act along the same line

Applied Mechanics and Graphic Statics The maximum displacement of a particle executing S.H.M. corresponds to

Applied Mechanics and Graphic Statics Kinetic friction may be defined as

Applied Mechanics and Graphic Statics
A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be

Applied Mechanics and Graphic Statics
On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts

Applied Mechanics and Graphic Statics
For a self-locking machine, the efficiency should be

Applied Mechanics and Graphic Statics
If two forces are in equilibrium, then the forces must(i) Be equal in magnitude(ii) Be opposite in sense(iii) Act along the same line

Applied Mechanics and Graphic Statics
The maximum displacement of a particle executing S.H.M. corresponds to

Applied Mechanics and Graphic Statics
Kinetic friction may be defined as