Engineering Mechanics MCQs

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

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

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

The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of $$\alpha $$ rad/s2, is

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

According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. $${I_{\text{P}}}$$) is given by (where, A = Area of the section, $${I_{\text{G}}}$$ = Moment of inertia of the section about an axis passing through its C.G. and h = Distance between C.G. and the parallel axis.)

The friction experienced by a body, when at rest, is known as

The energy possessed by a body, for doing work by virtue of its position, is called

The coefficient of friction depends upon