number of forces acting simultaneously on a particle of a body____.

A)
may be replaced by a couple
B)
may be replaced by a single force
C)
may not be replaced by a single force
D)
may be replaced by a single force through C.G. of the body

Correct Answer :   may be replaced by a single force

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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