The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics
The following statement is one of the laws of Dynamic friction

The force of friction always acts in a direction opposite to that in which a body is moving

The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction

All of these

For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed

The force of friction always acts in a direction opposite to that in which a body is moving

The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction

All of these

For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed

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Applied Mechanics and Graphic Statics
Coefficient of friction depends on

Both (A) and (B)

Nature of surfaces only

None of these

Area of contact only

Both (A) and (B)

Nature of surfaces only

None of these

Area of contact only

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Applied Mechanics and Graphic Statics
The intrinsic equation of catenary is

y = c cosh x/c

y = c sinh ψ

S = c tan ψ

y = c cosh ψ

y = c cosh x/c

y = c sinh ψ

S = c tan ψ

y = c cosh ψ

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Applied Mechanics and Graphic Statics
A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about (Assume g = 10 m/sec²)

43834

43832

43833

43835

43834

43832

43833

43835

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Applied Mechanics and Graphic Statics
In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is

1.5

314

5

25

1.5

314

5

25

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Applied Mechanics and Graphic Statics
A cube on a smooth horizontal surface

Cannot be in unstable equilibrium

Cannot be in neutral equilibrium

Can be in any of these states

Cannot be in stable equilibrium

Cannot be in unstable equilibrium

Cannot be in neutral equilibrium

Can be in any of these states

Cannot be in stable equilibrium

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics Coefficient of friction depends on

Applied Mechanics and Graphic Statics The intrinsic equation of catenary is

Applied Mechanics and Graphic Statics A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about (Assume g = 10 m/sec²)

Applied Mechanics and Graphic Statics In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is

Applied Mechanics and Graphic Statics A cube on a smooth horizontal surface

Applied Mechanics and Graphic Statics
The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics
Coefficient of friction depends on

Applied Mechanics and Graphic Statics
The intrinsic equation of catenary is

Applied Mechanics and Graphic Statics
A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about (Assume g = 10 m/sec²)

Applied Mechanics and Graphic Statics
In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is

Applied Mechanics and Graphic Statics
A cube on a smooth horizontal surface