If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along_____.

A)
the same line in the same sense
B)
the same line in opposite sense
C)
the perpendicular to both the lines
D)
All of the above

Correct Answer :   the same line in opposite sense

Recently Updated in Applied Mechanics Questions
A geo-stationary satellite is one which orbits the earth with a velocity of rotation of____.
A)
earth
B)
sun
C)
moon
D)
None of the Above

Correct Answer : Option (A) :   earth

If two equal forces of magnitude P act at an angle θ, their resultant, will be____.
A)
P sin θ/2
B)
P cos θ/2
C)
2P sin θ/2
D)
2P cos θ/2

Correct Answer : Option (D) :   2P cos θ/2

Two parallel forces 20 kg and 15 kg act. In order that the distance of the resultant from 20 kg force may be the same as that of the former resultant was from 15 kg, the 20 kg force is diminished by___.
A)
4.5 kg
B)
5.5 kg
C)
6.25 kg
D)
8.75 kg

Correct Answer : Option (D) :   8.75 kg

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