A rope is wrapped twice around a rough pole with a coefficient of friction ‘A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is

Applied Mechanics and Graphic Statics
A rope is wrapped twice around a rough pole with a coefficient of friction ‘A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is

1

e*72

e4*

e2*

1

e*72

e4*

e2*

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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

50 m/sec

30 m/sec

20 m/sec

40 m/sec

50 m/sec

30 m/sec

20 m/sec

40 m/sec

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Applied Mechanics and Graphic Statics
The practical units of work, is

Joule

Erg

Dyne

Newton

Joule

Erg

Dyne

Newton

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Applied Mechanics and Graphic Statics
A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight

Kinetic energy of the ball remains constant

Horizontal component of velocity remains constant

Speed of the ball remains constant

Vertical component of velocity remains constant

Kinetic energy of the ball remains constant

Horizontal component of velocity remains constant

Speed of the ball remains constant

Vertical component of velocity remains constant

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Applied Mechanics and Graphic Statics
If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is

60°

57°

59°

58°

60°

57°

59°

58°

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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 (i) and (iii)

Only (ii)

Both (ii) and (iii)

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

Both (i) and (iii)

Only (ii)

Both (ii) and (iii)

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics The practical units of work, is

Applied Mechanics and Graphic Statics A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight

Applied Mechanics and Graphic Statics If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is

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
The practical units of work, is

Applied Mechanics and Graphic Statics
A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight

Applied Mechanics and Graphic Statics
If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is

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