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

10 m/sec

None of these

5 m/sec

Zero

10 m/sec

None of these

5 m/sec

Zero

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Applied Mechanics and Graphic Statics
Power can be expressed as

Work/distance

Work × time

Work/energy

Work/time

Work/distance

Work × time

Work/energy

Work/time

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Applied Mechanics and Graphic Statics
The resolved part of the resultant of two forces inclined at an angle θ in a given direction is

Sum of the forces multiplied by the tangent θ°

Algebraic sum of the resolved parts of the forces in the direction

Difference of the forces multiplied by cosine θ°

Arithmetical sum of the resolved parts of the forces in the direction

Sum of the forces multiplied by the tangent θ°

Algebraic sum of the resolved parts of the forces in the direction

Difference of the forces multiplied by cosine θ°

Arithmetical sum of the resolved parts of the forces in the direction

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Applied Mechanics and Graphic Statics
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is (i) 5000 Nm (ii) 5000 kg.m (iii) 5000 J

Only (ii)

Both (ii) and (iii)

Both (i) and (iii)

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

Only (ii)

Both (ii) and (iii)

Both (i) and (iii)

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

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Applied Mechanics and Graphic Statics
A ladder of weight 'w' rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight 'w' is to walk to the top of it safely, is tan'1 x, where x is

1/4

1/3

4

3

1/4

1/3

4

3

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Applied Mechanics and Graphic Statics
The tension in a cable supporting a lift

Is more when the lift is moving downwards

Is less when the lift is moving upwards

Is less when the lift is moving downwards

Remains constant whether its moves downwards or upwards

Is more when the lift is moving downwards

Is less when the lift is moving upwards

Is less when the lift is moving downwards

Remains constant whether its moves downwards or upwards

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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 Power can be expressed as

Applied Mechanics and Graphic Statics The resolved part of the resultant of two forces inclined at an angle θ in a given direction is

Applied Mechanics and Graphic Statics A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is (i) 5000 Nm (ii) 5000 kg.m (iii) 5000 J

Applied Mechanics and Graphic Statics The tension in a cable supporting a lift

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
Power can be expressed as

Applied Mechanics and Graphic Statics
The resolved part of the resultant of two forces inclined at an angle θ in a given direction is

Applied Mechanics and Graphic Statics
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is (i) 5000 Nm (ii) 5000 kg.m (iii) 5000 J

Applied Mechanics and Graphic Statics
The tension in a cable supporting a lift