## 1. The resultant of two equal forces P making an angle $$\theta ,$$ is given by

## 2. A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.

## 3. If a number of forces are acting at a point, their resultant is given by

## 4. The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of $$\alpha $$ rad/s^{2}, is

^{2}, is

## 5. Moment of inertia of a circular section about an axis perpendicular to the section is

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