Applied Mechanics and Graphic Statics

Instantaneous center is at infinity when the angular velocity is _________________?

Byadmin January 18, 2019May 20, 2021

Instantaneous center is at infinity when the angular velocity is _________________?

A. constant
B. zero✔
C. maximum
D. minimum

Applied Mechanics and Graphic Statics

The ratio of the speed of a rolling cylinder to the speed of sliding cylinder is_______________?

The ratio of the speed of a rolling cylinder to the speed of sliding cylinder is_______________?

A. less than 1
B. equal to 1
C. between 1 and 2
D. greater than 2

Read More The ratio of the speed of a rolling cylinder to the speed of sliding cylinder is_______________?
Applied Mechanics and Graphic Statics

A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?

A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?

A. 50 J
B. 150 J
C. 200 J
D. 400 J

Read More A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?
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 ?

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 slipg ?

1) 1.0 in from the wall
2) 1.732 m from the wall
3) 1.0 m above the floor
4) 1.732 m above the floor
The correct answer is?
A. (1) and (3)
B. (1) and (4)
C. (2) and (3)
D. (2) and (4)

Read More 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 ?
Applied Mechanics and Graphic Statics

In SI units, the units of force and energy are respectively___________________?

In SI units, the units of force and energy are respectively___________________?

A. Newton and watt
B. Dyne and erg
C. Newton and joule(Correct)
D. kg-wt and joule

Read More In SI units, the units of force and energy are respectively___________________?
Applied Mechanics and Graphic Statics

A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is___________________?

A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is___________________?

A. 1/4
B. 1/3
C. 3
D. 4

Read More A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is___________________?
Applied Mechanics and Graphic Statics

A rigid body is in a stable equilibrium if the application of any force__________________?

A rigid body is in a stable equilibrium if the application of any force__________________?

A. can raise the CG of the body but can not lower it (Correct)
B. tends to lower the CG of the body
C. neither raises nor lowers the CG of the body
D. none of above

Read More A rigid body is in a stable equilibrium if the application of any force__________________?