Engineering Mechanics
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Minimum, if it acts at the center of gravity of the body
Different at different points on its line of action
Same at every point on its line of action
Maximum, if it acts at the center of gravity of the body

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Engineering Mechanics
The static friction

Is independent of the area of contact, between the two surfaces
Bears a constant ratio to the normal reaction between the two surfaces
All of these
Always acts in a direction, opposite to that in which the body tends to move

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

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