The centre of gravity of a plane lamina will not be at its geometrical centre if it is a

Applied Mechanics and Graphic Statics
The centre of gravity of a plane lamina will not be at its geometrical centre if it is a

Right angled triangle

Circle

Equilateral triangle

Rectangle

Right angled triangle

Circle

Equilateral triangle

Rectangle

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Applied Mechanics and Graphic Statics
The following statement is one of the laws of Dynamic friction

The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction

The force of friction always acts in a direction opposite to that in which a body is moving

All of these

For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed

The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction

The force of friction always acts in a direction opposite to that in which a body is moving

All of these

For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed

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Applied Mechanics and Graphic Statics
In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively

50 and 50

50 and 75

75 and 50

75 and 75

50 and 50

50 and 75

75 and 50

75 and 75

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Applied Mechanics and Graphic Statics
Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of

One-half of the total height above base

One-third of the total height above base

One-fourth of the total height above base

None of these

One-half of the total height above base

One-third of the total height above base

One-fourth of the total height above base

None of these

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Applied Mechanics and Graphic Statics
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

0.25

0.50

1.0

0.75

0.25

0.50

1.0

0.75

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Applied Mechanics and Graphic Statics
The phenomenon of collision of two elastic bodies takes place because bodies

Immediately after collision come momentarily to rest

All listed here

Tend to compress each other till they are compressed maximum possible

Attempt to regain its original shape due to their elasticities

Immediately after collision come momentarily to rest

All listed here

Tend to compress each other till they are compressed maximum possible

Attempt to regain its original shape due to their elasticities

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics The centre of gravity of a plane lamina will not be at its geometrical centre if it is a

Applied Mechanics and Graphic Statics The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively

Applied Mechanics and Graphic Statics Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of

Applied Mechanics and Graphic Statics A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

Applied Mechanics and Graphic Statics The phenomenon of collision of two elastic bodies takes place because bodies

Applied Mechanics and Graphic Statics
The centre of gravity of a plane lamina will not be at its geometrical centre if it is a

Applied Mechanics and Graphic Statics
The following statement is one of the laws of Dynamic friction

Applied Mechanics and Graphic Statics
In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively

Applied Mechanics and Graphic Statics
Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of

Applied Mechanics and Graphic Statics
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

Applied Mechanics and Graphic Statics
The phenomenon of collision of two elastic bodies takes place because bodies