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

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

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Strength of Materials
Kinetic friction is the

The friction force acting when the body is just about to move
The friction force acting when the body is in motion
Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction
Ratio of limiting friction and normal reaction

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