Engineering Mechanics
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

3.0 cm
5.0 cm
2.5 cm
4.0 cm

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Engineering Mechanics
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Minimum, if it acts at the center of gravity of the body
Different at different points on its line of action
Maximum, if it acts at the center of gravity of the body
Same at every point on its line of action

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Engineering Mechanics
The term 'Centroid' is

The same as centre of gravity
The point of suspension
The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
None of the listed here

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