The maximum mechanical advantage of a lifting machine is

Engineering Mechanics
The maximum mechanical advantage of a lifting machine is

1 + m

m

1 / m

1 - m

1 + m

m

1 / m

1 - m

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Engineering Mechanics
Which is the correct statement about law of polygon of forces?

If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium

If a polygon representing forces acting at a point is closed then forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium

If a polygon representing forces acting at a point is closed then forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

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Engineering Mechanics
The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

2P sinθ/2

2P tanθ/2

2P cosθ/2

2P cotθ/2

2P sinθ/2

2P tanθ/2

2P cosθ/2

2P cotθ/2

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.

Maximum

None of these

Minimum

Zero

Maximum

None of these

Minimum

Zero

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Engineering Mechanics
The resolved part of the resultant of two forces inclined at an angle 'θ' in a given direction is equal to

The sum of the forces multiplied by the sine of θ

The sum of the resolved parts of the forces in the given direction

The algebraic sum of the resolved parts of the forces in the given direction

The difference of the forces multiplied by the cosine of θ

The sum of the forces multiplied by the sine of θ

The sum of the resolved parts of the forces in the given direction

The algebraic sum of the resolved parts of the forces in the given direction

The difference of the forces multiplied by the cosine of θ

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Engineering Mechanics
Centre of gravity of a solid cone lies on the axis at the height

One third of the total height above base

One fourth of the total height above base

Three eighth of the total height above the base

One-half of the total height above base

One third of the total height above base

One fourth of the total height above base

Three eighth of the total height above the base

One-half of the total height above base

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Engineering Mechanics

Engineering Mechanics The maximum mechanical advantage of a lifting machine is

Engineering Mechanics Which is the correct statement about law of polygon of forces?

Engineering Mechanics The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

Engineering Mechanics The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.

Engineering Mechanics The resolved part of the resultant of two forces inclined at an angle 'θ' in a given direction is equal to

Engineering Mechanics Centre of gravity of a solid cone lies on the axis at the height

Engineering Mechanics
The maximum mechanical advantage of a lifting machine is

Engineering Mechanics
Which is the correct statement about law of polygon of forces?

Engineering Mechanics
The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.

Engineering Mechanics
The resolved part of the resultant of two forces inclined at an angle 'θ' in a given direction is equal to

Engineering Mechanics
Centre of gravity of a solid cone lies on the axis at the height