Center of gravity of a thin hollow cone lies on the axis at a height of

Engineering Mechanics
Center of gravity of a thin hollow cone lies on the axis at a height of

One-third of the total height above base

One-fourth of the total height above base

One-half of the total height above base

Three-eighth of the total height above the base

One-third of the total height above base

One-fourth of the total height above base

One-half of the total height above base

Three-eighth of the total height above the base

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Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g sinθ

g cosθ

None of these

g tanθ

g sinθ

g cosθ

None of these

g tanθ

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Engineering Mechanics
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

4v

8v

v

2v

4v

8v

v

2v

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Engineering Mechanics
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.

First

None of these

Second

Third

First

None of these

Second

Third

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Engineering Mechanics
The moment of a force

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

All of these

Is the turning effect produced by a force, on the body, on which it acts

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

All of these

Is the turning effect produced by a force, on the body, on which it acts

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Engineering Mechanics
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

Equal to

None of these

Greater than

Less than

Equal to

None of these

Greater than

Less than

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Engineering Mechanics

Engineering Mechanics Center of gravity of a thin hollow cone lies on the axis at a height of

Engineering Mechanics The acceleration of a body sliding down an inclined surface is

Engineering Mechanics A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

Engineering Mechanics If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.

Engineering Mechanics The moment of a force

Engineering Mechanics The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

Engineering Mechanics
Center of gravity of a thin hollow cone lies on the axis at a height of

Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

Engineering Mechanics
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

Engineering Mechanics
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.

Engineering Mechanics
The moment of a force

Engineering Mechanics
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.