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

e4*

1

e2*

e*72

e4*

1

e2*

e*72

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Applied Mechanics and Graphic Statics
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ? i. 1.0 in from the wall ii. 1.732 m from the wall iii. 1.0 m above the floor iv. 1.732 m above the floor The correct answer is

(ii) and (iii)

(ii) and (iv)

(i) and (iii)

(i) and (iv)

(ii) and (iii)

(ii) and (iv)

(i) and (iii)

(i) and (iv)

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Applied Mechanics and Graphic Statics
At the instantaneous center, the velocity of the moving lamina at any instant is

Zero

Minimum

Varying

Maximum

Zero

Minimum

Varying

Maximum

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Applied Mechanics and Graphic Statics
The pole distance is measured in

time scale

force scale

distance scale

mass scale

time scale

force scale

distance scale

mass scale

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Applied Mechanics and Graphic Statics
A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is

80 N

100 N

120 N

60 N

80 N

100 N

120 N

60 N

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Applied Mechanics and Graphic Statics
A ball of mass 1 kg moving with a velocity of 2 m/sec collides a stationary ball of mass 2 kg and comes to rest after impact. The velocity of the second ball after impact will be

Zero

1.0 m/sec

0.5 m/sec

2.0 m/sec

Zero

1.0 m/sec

0.5 m/sec

2.0 m/sec

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics At the instantaneous center, the velocity of the moving lamina at any instant is

Applied Mechanics and Graphic Statics The pole distance is measured in

Applied Mechanics and Graphic Statics A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is

Applied Mechanics and Graphic Statics A ball of mass 1 kg moving with a velocity of 2 m/sec collides a stationary ball of mass 2 kg and comes to rest after impact. The velocity of the second ball after impact will be

Applied Mechanics and Graphic Statics
At the instantaneous center, the velocity of the moving lamina at any instant is

Applied Mechanics and Graphic Statics
The pole distance is measured in

Applied Mechanics and Graphic Statics
A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is

Applied Mechanics and Graphic Statics
A ball of mass 1 kg moving with a velocity of 2 m/sec collides a stationary ball of mass 2 kg and comes to rest after impact. The velocity of the second ball after impact will be