A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)

Engineering Mechanics
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)

P = W tanα

P = W (cosα + μsinα)

P = W (sinα + μcosα)

P = W tan (α + φ)

P = W tanα

P = W (cosα + μsinα)

P = W (sinα + μcosα)

P = W tan (α + φ)

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Engineering Mechanics
If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

g/3

g/4

None of these

g/2

g/3

g/4

None of these

g/2

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Engineering Mechanics
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Same at every point on its line of action

Maximum, if it acts at the center of gravity of the body

Different at different points on its line of action

Minimum, if it acts at the center of gravity of the body

Same at every point on its line of action

Maximum, if it acts at the center of gravity of the body

Different at different points on its line of action

Minimum, if it acts at the center of gravity of the body

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Engineering Mechanics
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Either ‘A’ or ‘B’

Do not meet

None of these

Meet

Either ‘A’ or ‘B’

Do not meet

None of these

Meet

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Engineering Mechanics
If the gravitational acceleration at any place is doubled, then the weight of a body will be

2g

g/2

g

√2.g

2g

g/2

g

√2.g

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Engineering Mechanics
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

D/(D - d)

2D/(D - d)

D/(D + d)

2D/(D + d)

D/(D - d)

2D/(D - d)

D/(D + d)

2D/(D + d)

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Engineering Mechanics

Engineering Mechanics A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)

Engineering Mechanics If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

Engineering Mechanics The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Engineering Mechanics Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Engineering Mechanics If the gravitational acceleration at any place is doubled, then the weight of a body will be

Engineering Mechanics The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

Engineering Mechanics
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)

Engineering Mechanics
If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

Engineering Mechanics
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Engineering Mechanics
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Engineering Mechanics
If the gravitational acceleration at any place is doubled, then the weight of a body will be

Engineering Mechanics
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is