The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

Applied Mechanics and Graphic Statics
The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

10.88 m/sec

8.88 m/sec

12.88 m/sec

5.88 m/sec

10.88 m/sec

8.88 m/sec

12.88 m/sec

5.88 m/sec

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Applied Mechanics and Graphic Statics
A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec²)

25 m/sec

50 m/sec

40 m/sec

15 m/sec

25 m/sec

50 m/sec

40 m/sec

15 m/sec

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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

43833

3

43834

4

43833

3

43834

4

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Applied Mechanics and Graphic Statics
One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is

None of these

a rectilinear motion with constant speed

a damped oscillatory motion

a simple harmonic motion

None of these

a rectilinear motion with constant speed

a damped oscillatory motion

a simple harmonic motion

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Applied Mechanics and Graphic Statics
If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called

Zero work

Imaginary work

Virtual work

Negative work

Zero work

Imaginary work

Virtual work

Negative work

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

A circular motion

A rotary motion

A translatory

A rotary motion and translatory motion

A circular motion

A rotary motion

A translatory

A rotary motion and translatory motion

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

Applied Mechanics and Graphic Statics If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called

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

Applied Mechanics and Graphic Statics
The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

Applied Mechanics and Graphic Statics
If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called

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