A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is<br/>(i) 5000 Nm<br/>(ii) 5000 kg.m<br/>(iii) 5000 J

Applied Mechanics and Graphic Statics
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is
(i) 5000 Nm
(ii) 5000 kg.m
(iii) 5000 J

All (i), (ii) and (iii)

Both (ii) and (iii)

Only (ii)

Both (i) and (iii)

All (i), (ii) and (iii)

Both (ii) and (iii)

Only (ii)

Both (i) and (iii)

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Applied Mechanics and Graphic Statics
For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is

0.7

0.6

0.75

0.65

0.7

0.6

0.75

0.65

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

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

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

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

All of these

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

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

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

All of these

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

Both force polygon and funicular polygon must close

Only the closure of funicular polygon is sufficient

None of these

Only the closure of force polygon is sufficient

Both force polygon and funicular polygon must close

Only the closure of funicular polygon is sufficient

None of these

Only the closure of force polygon is sufficient

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Applied Mechanics and Graphic Statics
A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration

At the top of the trajectory

Elsewhere

As it strikes the ground

At the start

At the top of the trajectory

Elsewhere

As it strikes the ground

At the start

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Applied Mechanics and Graphic Statics
When a body slides down an inclined surface, the acceleration (f) of the body, is given by

f = g tan θ

f = g sin θ

f = g

f = g cos θ

f = g tan θ

f = g sin θ

f = g

f = g cos θ

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is(i) 5000 Nm(ii) 5000 kg.m(iii) 5000 J

Applied Mechanics and Graphic Statics For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is

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

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

Applied Mechanics and Graphic Statics A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration

Applied Mechanics and Graphic Statics When a body slides down an inclined surface, the acceleration (f) of the body, is given by

Applied Mechanics and Graphic Statics
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is
(i) 5000 Nm
(ii) 5000 kg.m
(iii) 5000 J

Applied Mechanics and Graphic Statics
For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is

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

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

Applied Mechanics and Graphic Statics
A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration

Applied Mechanics and Graphic Statics
When a body slides down an inclined surface, the acceleration (f) of the body, is given by