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Engineering Mechanics

Engineering Mechanics
The horizontal range of a projectile (R) is given by

R = u² cos2α/g
R = u² cosα/g
R = u² sin2α/g
R = u² sinα/g

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Engineering Mechanics
The centre of gravity of a right circular solid cone is at a distance of _________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)

h/2
h/3
h/6
h/4

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Engineering Mechanics
The impact between two lead spheres is approximately equal to an __________ impact.

Inelastic
None of these
Solid
Elastic

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Engineering Mechanics
The velocity of a particle moving with simple harmonic motion is _________ at the mean position.

Maximum
Minimum
Zero
None of these

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Engineering Mechanics
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

Equal to
Greater than
Equal and opposite to
Less than

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Engineering Mechanics
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as

Principle of independence of forces
Principle of transmissibility of forces
Principle of resolution of forces
None of these

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