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

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

3

43833

43834

4

3

43833

43834

4

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Applied Mechanics and Graphic Statics
A rope is wrapped twice around a rough pole with a coefficient of friction ‘A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is

e*72

1

e2*

e4*

e*72

1

e2*

e4*

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Applied Mechanics and Graphic Statics
When a body moves round a fixed axis, it has

A rotary motion

A rotary motion and translatory motion

A circular motion

A translatory

A rotary motion

A rotary motion and translatory motion

A circular motion

A translatory

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Applied Mechanics and Graphic Statics
Pick up the incorrect statement from the following. In a simple harmonic motion

Velocity is maximum at its mean position

Acceleration is zero at the mean position

Velocity is minimum at the end of the stroke

Acceleration is minimum at the end of the stroke

Velocity is maximum at its mean position

Acceleration is zero at the mean position

Velocity is minimum at the end of the stroke

Acceleration is minimum at the end of the stroke

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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

Zero

None of these

5 m/sec

10 m/sec

Zero

None of these

5 m/sec

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Applied Mechanics and Graphic Statics
The Centre of gravity of a 10 × 15 × 5 cm T section from its bottom, is

7.5 cm

7.85 cm

5.0 cm

8.75 cm

7.5 cm

7.85 cm

5.0 cm

8.75 cm

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics When a body moves round a fixed axis, it has

Applied Mechanics and Graphic Statics Pick up the incorrect statement from the following. In a simple harmonic motion

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 The Centre of gravity of a 10 × 15 × 5 cm T section from its bottom, is

Applied Mechanics and Graphic Statics
When a body moves round a fixed axis, it has

Applied Mechanics and Graphic Statics
Pick up the incorrect statement from the following. In a simple harmonic motion

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
The Centre of gravity of a 10 × 15 × 5 cm T section from its bottom, is