# Mechanical Engineering - Engineering Mechanics

### Exercise :: Engineering Mechanics - Section 7

1.

When a body of mass moment of inertia I (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

 A. Iω B. Iω2 C. 0.5Iω D. 0.5Iω2

Explanation:

No answer description available for this question. Let us discuss.

2.

The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is

 A. 20N B. 100N C. 500N D. none of these

Explanation:

No answer description available for this question. Let us discuss.

3.

The motion of the body from one extremity to the other is known as a beat.

 A. Agree B. Disagree

Explanation:

No answer description available for this question. Let us discuss.

4.

The centre of gravity of a rectangle lies at a point where its two diagonals meet each other.

 A. Agree B. Disagree

Explanation:

No answer description available for this question. Let us discuss.

5.

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

 A. equal to B. less than C. greater than D. either (b) or (c)