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Engineering Mechanics

Engineering Mechanics
The time of flight (t) of a projectile on a horizontal plane is given by

t = 2u. cosα/g
t = 2u. sinα/g
t = 2u/g.sinα
t = 2u. tanα/g

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Engineering Mechanics
The angular velocity (in rad/s) of a body rotating at N revolutions per minute is

2πN/60
πN/60
2πN/180
πN/180

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Engineering Mechanics
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is

mr²/8
mr²/2
mr²/6
mr²/4

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Engineering Mechanics
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

60°
90°
30°
120°

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Engineering Mechanics
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

v
2v
4v
8v

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Engineering Mechanics
One joule is equal to

0.1 N-m
10 N-m
1 N-m
100 N-m

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MORE MCQ ON Engineering Mechanics

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