A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is

Applied Mechanics and Graphic Statics
A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is

43839

44052

43833

43864

43839

44052

43833

43864

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Applied Mechanics and Graphic Statics
A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be

2E

E

4E

E/2

2E

E

4E

E/2

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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

tan θ

cos θ

sin θ

cosec θ

tan θ

cos θ

sin θ

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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)

50 m/sec

40 m/sec

15 m/sec

25 m/sec

50 m/sec

40 m/sec

15 m/sec

25 m/sec

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Applied Mechanics and Graphic Statics
In a simple harmonic motion, the position of equilibrium is always

Neutral

Stable

None of these

Unstable

Neutral

Stable

None of these

Unstable

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Applied Mechanics and Graphic Statics
The centre of gravity of a triangle is at the point where three

Bisectors of the angle of the triangle meet

Perpendicular bisectors of the sides of the triangle meet

Medians of the triangle meet

None of these

Bisectors of the angle of the triangle meet

Perpendicular bisectors of the sides of the triangle meet

Medians of the triangle meet

None of these

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is

Applied Mechanics and Graphic Statics A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be

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 In a simple harmonic motion, the position of equilibrium is always

Applied Mechanics and Graphic Statics The centre of gravity of a triangle is at the point where three

Applied Mechanics and Graphic Statics
A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is

Applied Mechanics and Graphic Statics
A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be

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
In a simple harmonic motion, the position of equilibrium is always

Applied Mechanics and Graphic Statics
The centre of gravity of a triangle is at the point where three