A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be

Applied Mechanics and Graphic Statics
A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be

30 m/sec

40 m/sec

20 m/sec

50 m/sec

30 m/sec

40 m/sec

20 m/sec

50 m/sec

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Applied Mechanics and Graphic Statics
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?

prism

pyramid

None of these

both equally stable

prism

pyramid

None of these

both equally stable

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Applied Mechanics and Graphic Statics
A system of coplanar forces acting on a rigid body can be reduced to

One couple only

One force only

One force and one couple only

None of these

One couple only

One force only

One force and one couple only

None of these

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Applied Mechanics and Graphic Statics
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, theni. a force is required to move the body upwardsii. a force is required to move the body downwardiii. the body will not be in equilibriumThe correct answer is

both (i) and (iii)

only (ii)

both (i) and (ii)

only (i)

both (i) and (iii)

only (ii)

both (i) and (ii)

only (i)

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Applied Mechanics and Graphic Statics
For a non-concurrent force system to be in equilibrium

Only the closure of funicular polygon is sufficient

Only the closure of force polygon is sufficient

Both force polygon and funicular polygon must close

None of these

Only the closure of funicular polygon is sufficient

Only the closure of force polygon is sufficient

Both force polygon and funicular polygon must close

None of these

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Applied Mechanics and Graphic Statics
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is

n rpm

n/2 rpm

2n rpm

n/4 rpm

n rpm

n/2 rpm

2n rpm

n/4 rpm

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?

Applied Mechanics and Graphic Statics A system of coplanar forces acting on a rigid body can be reduced to

Applied Mechanics and Graphic Statics For a non-concurrent force system to be in equilibrium

Applied Mechanics and Graphic Statics A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is

Applied Mechanics and Graphic Statics
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?

Applied Mechanics and Graphic Statics
A system of coplanar forces acting on a rigid body can be reduced to

Applied Mechanics and Graphic Statics
For a non-concurrent force system to be in equilibrium

Applied Mechanics and Graphic Statics
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is