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 tan (α + φ)

P = W (sinα + μcosα)

P = W tanα

P = W (cosα + μsinα)

P = W tan (α + φ)

P = W (sinα + μcosα)

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Engineering Mechanics
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

MS/5

MS/3

None of these

MS/4

MS/5

MS/3

None of these

MS/4

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Engineering Mechanics
The bodies which rebound after impact are called

Elastic bodies

Inelastic bodies

None of these

Neither elastic nor inelastic bodies

Elastic bodies

Inelastic bodies

None of these

Neither elastic nor inelastic bodies

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Engineering Mechanics
The C.G. of a solid hemisphere lies on the central radius 3r

At distance — from the plane base 3r

At distance — from the plane base

At distance — from the plane base 3r

At distance — from the plane base

At distance — from the plane base 3r

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Engineering Mechanics
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

None of these

Greater than

Less than

Equal to

None of these

Greater than

Less than

Equal to

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Engineering Mechanics
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is

2mr²/5

mr²

2mr²/3

mr²/2

2mr²/5

mr²

2mr²/3

mr²/2

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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 A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

Engineering Mechanics The bodies which rebound after impact are called

Engineering Mechanics The C.G. of a solid hemisphere lies on the central radius 3r

Engineering Mechanics The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

Engineering Mechanics The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ 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
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

Engineering Mechanics
The bodies which rebound after impact are called

Engineering Mechanics
The C.G. of a solid hemisphere lies on the central radius 3r

Engineering Mechanics
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

Engineering Mechanics
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is