Strength of Materials
The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are

3 and 1 kg
2 and V6
2 and 5
V5 and V5

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Strength of Materials
If a rigid body is in equilibrium under the action of three forces, then

the lines of action of these forces are parallel
these forces are equal
the lines of action of these forces meet in a point & the lines of action of these forces are parallel
the lines of action of these forces meet in a point

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