Discussion
Home ‣ Civil Engineering ‣ Applied Mechanics Comments
- Question
A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball B on the table. If the impact is perfectly plastic, the velocity of the ball B just after impact would be
Options- A. zero
- B. 5 m/sec
- C. 10 m/sec
- D. none of these.
- Correct Answer
- zero
- 1. Angular acceleration of a particle may be expressed as
Options- A. radians/sec2
- B. degrees/sec2
- C. revolutions/sec
- D. all the above. Discuss
- 2. According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centres lie on
Options- A. a point
- B. a straight line
- C. two straight lines
- D. a triangle. Discuss
- 3. A weight W is suspended at the free end of a light member hinged to a vertical wall. If the angle of inclination of the member with the upper wall is ?°, the force introduced in the member, is
Options- A. W sec ?
- B. W cos ?
- C. W sin ?
- D. W cosec ?
- E. W tan ?. Discuss
- 4. Varigon's theorem of moments states
Options- A. arithmetical sum of the moments of two forces about any point, is equal to the moments of their resultant about that point
- B. algebraic sum of the moments of two forces about any point, is equal to the moment of their resultant about that point
- C. arithmetical sum of the moments of the forces about any point in their plane, is equal to the moment of their resultant about that point
- D. algebraic sum of the moments of the forces about any point in their plane, is equal to the moment of their resulant about that point. Discuss
- 5. The phenomenon of collision of two elastic bodies takes place because bodies
Options- A. immediately after collision come momentarily to rest
- B. tend to compress each other till they are compressed maximum possible
- C. attempt to regain its original shape due to their elasticities
- D. all the above. Discuss
- 6. One half of a vibration of a body, is called
Options- A. period time
- B. oscillation
- C. beat
- D. amplitude. Discuss
- 7. A smooth cylinder lying on its convex surface remains
Options- A. in stable equilibrium
- B. in unstable equilibrium
- C. in neutral equilibrium
- D. out of equilibrium
- E. none of these. Discuss
- 8. A sphere is resting on two planes BA and BC which are inclined at 45° and 60° respectively with the horizontal. The reaction on the plane BA will be
Options- A. less than that on BC
- B. more than that of BC
- C. equal to that on BC
- D. zero
- E. none of these. Discuss
- 9. A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight
Options- A. vertical component of velocity remains constant
- B. horizontal component of velocity remains constant
- C. speed of the ball remains constant
- D. kinetic energy of the ball remains constant. Discuss
- 10. In case of S.H.M. the period of oscillation(T), is given by
Options- A.
- B.
- C.
- D.
Discuss
Applied Mechanics problems
Search Results
Correct Answer: all the above.
Correct Answer: a straight line
Correct Answer: W sec ?
Correct Answer: algebraic sum of the moments of the forces about any point in their plane, is equal to the moment of their resulant about that point.
Correct Answer: all the above.
Correct Answer: beat
Correct Answer: in unstable equilibrium
Correct Answer: more than that of BC
Correct Answer: horizontal component of velocity remains constant
Correct Answer:
Comments
There are no comments.More in Civil Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.