Engineering Mechanics
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

0.5 Iω2
Iω2
0.5 Iω

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Engineering Mechanics
Angle of friction is the

The ratio of minimum friction force to friction force acting when the body is in motion
The ratio of minimum friction force to the friction force acting when the body is just about to move
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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Engineering Mechanics
Which of the following statement is correct in connection with projectiles?

The angle, with the horizontal, at which a projectile is projected, is known as angle of projection.
The velocity, with which a projectile is projected, is known as the velocity of projection.
All of these
A path, traced by a projectile in the space, is known as trajectory.

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Engineering Mechanics
Non-coplanar non-concurrent forces are those forces which

None of these
Do not meet at one point and their lines of action do not lie on the same plane
Do not meet at one point but their lines of action lie on the same plane
Meet at one point, but their lines of action do not lie on the same plane

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