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Civil Engineering - Applied Mechanics

Exercise : Applied Mechanics - Section 3
26.
Newtons's Law of Motion is :
Every body continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
To every action, there is always an equal and opposite reaction
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The member which does not carry zero force in the structure shown in below figure, is
ED
DC
BC
BD.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The equation of motion of a particle starting from rest along a straight line is x = t3 - 3l2 + 5. The ratio of the velocities after 5 sec and 3 sec will be
2
3
4
5
4.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is
437.5 cm4
337.5 cm4
237.5 cm4
137.5 cm4
37.5 cm4.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The height at which the end of a rope of length l should be tied so that a man pulling at the other end may have the greatest tendency to overturn the pillar, is
l
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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