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Civil Engineering - Applied Mechanics

Exercise : Applied Mechanics - Section 5
36.
Pick up the incorrect statement from the following. In a simple harmonic motion
velocity is maximum at its mean position
velocity is minimum at the end of the storke
acceleration is minimum at the end of the stroke
acceleration is zero at the mean position.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
The gravitational force makes a satellite go round the earth in a circular orbit, if it is projected with an initial velocity of
8.04 km/sec at a height of 285 km
11.11 km/sec at a height of 37, 400 km
11.26 km/sec, the satellite escapes the pull of the earth
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
The point about which combined motion of rotation and translation of a rigid body takes place, is known as
Virtual centre
Instantaneous centre
Instantaneous axis
Point of rotation
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is
16 m/sec
18 m/sec
20 m/sec
22 m/sec.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
A point subjected to a number of forces will be in equilibrium, if
sum of resolved parts in any two directions at right angles, are both zero
algebraic sum of the forces is zero
two resolved parts in any two directions at right angles are equal
algebraic sum of the moments of the forces about the point is zero
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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