Free body diagram is an____________________?

Byadmin January 18, 2019June 4, 2021

Free body diagram is an____________________?

A. isolated joint with only body forces acting on it
B. isolated joint with internal forces acting on it
C. isolated joint with all the forces, internal as well as external, acting on it(Correct)
D. none of the above

Applied Mechanics and Graphic Statics

A system of copianar forces is in equilibrium when___________________?

A system of copianar forces is in equilibrium when___________________?

A. force polygon closes
B. funicular polygon closes
C. both force polygon” and funicular polygon close(Correct)
D. all the forces are concurrent

Read More A system of copianar forces is in equilibrium when___________________?
Applied Mechanics and Graphic Statics

A cube on a smooth horizontal surface___________________?

A cube on a smooth horizontal surface___________________?

A. cannot be in stable equilibrium
B. cannot be in neutral equilibrium
C. cannot be in unstable equilibrium
D. can be in any of these states

Read More A cube on a smooth horizontal surface___________________?
Applied Mechanics and Graphic Statics

A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first ?

A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first ?

A. sphere with greater rotational energy at bottom than cylinder
B. sphere with lesser rotational energy at bottom than cylinder (Ccrrect)
C. cylinder with greater rotational energy at bottom than sphere
D. both reach the bottom simultaneously with equal rotational energy at bottom

Read More A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first ?
Applied Mechanics and Graphic Statics

Which of the following represents the state of neutral equilibrium ?

Which of the following represents the state of neutral equilibrium ?

A. a cube resting on one edge
B. a smooth cylinder lying on a curved surface
C. a smooth cylinder lying on a convex surface
D. none of the above

Read More Which of the following represents the state of neutral equilibrium ?
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____________________?

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____________________?

A. 20 m/sec
B. 30 m/sec(Correct)
C. 40 m/sec
D. 50 m/sec

Read More 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 solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is_______________?

A solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is_______________?

A. (1/3) g sin0
B. (2/5) g sin 0
C. (3/7) g sin 0
D. (5/7) g sin0(Correct)

where g is acceleration due to gravity

Read More A solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is_______________?

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