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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is

2mr²/5
mr²/2
mr²
2mr²/3

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

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

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Engineering Mechanics
The total motion possessed by a body, is called

Weight
Impulsive force
Momentum
Mass

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Engineering Mechanics
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

Q / P
P - Q
P / Q
P + Q

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Engineering Mechanics
A smooth cylinder lying on a __________ is in neutral equilibrium.

Curved surface
None of these
Horizontal surface
Convex surface

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Engineering Mechanics
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

3.0 cm
4.0 cm
5.0 cm
2.5 cm

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