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

43834

4

43833

3

43834

4

43833

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Applied Mechanics and Graphic Statics
From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The C.G. of the remainder shifts from the original position through

0.25 cm

0.50 cm

0.75 cm

1.00 cm

0.25 cm

0.50 cm

0.75 cm

1.00 cm

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Applied Mechanics and Graphic Statics
A system of coplanar forces is in equilibrium when

Both force polygon" and funicular polygon close

Force polygon closes

All the forces are concurrent

Funicular polygon closes

Both force polygon" and funicular polygon close

Force polygon closes

All the forces are concurrent

Funicular polygon closes

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Applied Mechanics and Graphic Statics
Kinetic friction may be defined as

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 just about to move

Friction force acting when the body is in motion

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 just about to move

Friction force acting when the body is in motion

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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)

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

Both (i) and (iii)

Only (ii)

Both (ii) and (iii)

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

Both (i) and (iii)

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Applied Mechanics and Graphic Statics
A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is

80 m/sec

90 m/sec

70 m/sec

75 m/sec

80 m/sec

90 m/sec

70 m/sec

75 m/sec

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The C.G. of the remainder shifts from the original position through

Applied Mechanics and Graphic Statics A system of coplanar forces is in equilibrium when

Applied Mechanics and Graphic Statics Kinetic friction may be defined as

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 A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is

Applied Mechanics and Graphic Statics
From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The C.G. of the remainder shifts from the original position through

Applied Mechanics and Graphic Statics
A system of coplanar forces is in equilibrium when

Applied Mechanics and Graphic Statics
Kinetic friction may be defined as

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
A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is