Engineering Mechanics
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is

mr²/6
mr²/8
mr²/4
mr²/2

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Engineering Mechanics
Which of the following statement is correct in connection with projectiles?

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

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