Maximum efficiency of a screw jack for the angle of friction θ, is

Applied Mechanics and Graphic Statics
Maximum efficiency of a screw jack for the angle of friction θ, is

(1 - sin θ)/sin θ

(1 + sin θ)/(1 - sin θ)

sin θ/(1 + sin θ)

(1 - sin θ)/(1 + sin θ)

(1 - sin θ)/sin θ

(1 + sin θ)/(1 - sin θ)

sin θ/(1 + sin θ)

(1 - sin θ)/(1 + sin θ)

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Applied Mechanics and Graphic Statics
A Seconds pendulum executes

1.0 beat per second

2.5 beats per second

2.0 beats per second

0.5 beat per second

1.0 beat per second

2.5 beats per second

2.0 beats per second

0.5 beat per second

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Applied Mechanics and Graphic Statics
The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by

0.084027777777778

0.043055555555556

0.042361111111111

0.12569444444444

0.084027777777778

0.043055555555556

0.042361111111111

0.12569444444444

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Applied Mechanics and Graphic Statics
The instantaneous centre of a member lies at the point of intersection of two lines drawn at the ends of the member such that the lines are inclined to the direction of motion of the ends at

45°

30°

90°

60°

45°

30°

90°

60°

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Applied Mechanics and Graphic Statics
If the resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’ makes an angle ‘α’ with ‘P’, then tan α equals

Q sin θ/P + Q cos θ

P sin θ/P - Q cos θ

Q sin θ/P + Q sin θ

P sin θ/P + Q tan θ

Q sin θ/P + Q cos θ

P sin θ/P - Q cos θ

Q sin θ/P + Q sin θ

P sin θ/P + Q tan θ

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Applied Mechanics and Graphic Statics
The Law of Polygon of Forces states that

If forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by t

If a polygon representing the forces acting at point in a body is closed, the forces are in equilibrium

If forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side

If forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium

If forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by t

If a polygon representing the forces acting at point in a body is closed, the forces are in equilibrium

If forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side

If forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics Maximum efficiency of a screw jack for the angle of friction θ, is

Applied Mechanics and Graphic Statics A Seconds pendulum executes

Applied Mechanics and Graphic Statics The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by

Applied Mechanics and Graphic Statics The instantaneous centre of a member lies at the point of intersection of two lines drawn at the ends of the member such that the lines are inclined to the direction of motion of the ends at

Applied Mechanics and Graphic Statics If the resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’ makes an angle ‘α’ with ‘P’, then tan α equals

Applied Mechanics and Graphic Statics The Law of Polygon of Forces states that

Applied Mechanics and Graphic Statics
Maximum efficiency of a screw jack for the angle of friction θ, is

Applied Mechanics and Graphic Statics
A Seconds pendulum executes

Applied Mechanics and Graphic Statics
The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by

Applied Mechanics and Graphic Statics
The instantaneous centre of a member lies at the point of intersection of two lines drawn at the ends of the member such that the lines are inclined to the direction of motion of the ends at

Applied Mechanics and Graphic Statics
If the resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’ makes an angle ‘α’ with ‘P’, then tan α equals

Applied Mechanics and Graphic Statics
The Law of Polygon of Forces states that