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

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.

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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Engineering Mechanics
A particle moves along a straight line such that distance (x) traversed in 't' seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation

3t² + 2t

6t² - 8t

6f - 8

6f - 4

3t² + 2t

6t² - 8t

6f - 8

6f - 4

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Engineering Mechanics
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.

Directly

Inversely

Square root

None of these

Directly

Inversely

Square root

None of these

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Engineering Mechanics
The maximum efficiency of a lifting machine is

1/(m × V.R.)

V.R./m

m/V.R.

1/m

1/(m × V.R.)

V.R./m

m/V.R.

1/m

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

bh3/12

bh3/4

bh3/8

bh3/36

bh3/12

bh3/4

bh3/8

bh3/36

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Engineering Mechanics
The moment of a force

All of these

Is the turning effect produced by a force, on the body, on which it acts

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

All of these

Is the turning effect produced by a force, on the body, on which it acts

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

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Engineering Mechanics

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

Engineering Mechanics A particle moves along a straight line such that distance (x) traversed in 't' seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation

Engineering Mechanics The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.

Engineering Mechanics The maximum efficiency of a lifting machine is

Engineering Mechanics Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

Engineering Mechanics The moment of a force

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

Engineering Mechanics
A particle moves along a straight line such that distance (x) traversed in 't' seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation

Engineering Mechanics
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.

Engineering Mechanics
The maximum efficiency of a lifting machine is

Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

Engineering Mechanics
The moment of a force