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

4

1/3

3

1/4

4

1/3

3

1/4

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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
The maximum displacement of a particle executing S.H.M. corresponds to

Zero kinetic energy and maximum potential energy

Minimum kinetic energy and minimum potential energy

Maximum kinetic energy and maximum potential energy

Zero potential energy and maximum kinetic energy

Zero kinetic energy and maximum potential energy

Minimum kinetic energy and minimum potential energy

Maximum kinetic energy and maximum potential energy

Zero potential energy and maximum kinetic energy

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Applied Mechanics and Graphic Statics
A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be

30 m/sec

50 m/sec

20 m/sec

40 m/sec

30 m/sec

50 m/sec

20 m/sec

40 m/sec

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Applied Mechanics and Graphic Statics
M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is

π/64 (D⁴ + d⁴)

π/32 (D⁴ - d⁴)

π/32 (D⁴ + d⁴)

π/32 (D⁴ × d⁴)

π/64 (D⁴ + d⁴)

π/32 (D⁴ - d⁴)

π/32 (D⁴ + d⁴)

π/32 (D⁴ × d⁴)

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Applied Mechanics and Graphic Statics
The velocity ratio of an inclined plane of inclination ‘θ’ with horizontal for lifting a load is

cosec θ

cos θ

sin θ

tan θ

cosec θ

cos θ

sin θ

tan θ

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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 The maximum displacement of a particle executing S.H.M. corresponds to

Applied Mechanics and Graphic Statics M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is

Applied Mechanics and Graphic Statics The velocity ratio of an inclined plane of inclination ‘θ’ with horizontal for lifting a load 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
The maximum displacement of a particle executing S.H.M. corresponds to

Applied Mechanics and Graphic Statics
M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is

Applied Mechanics and Graphic Statics
The velocity ratio of an inclined plane of inclination ‘θ’ with horizontal for lifting a load is