Engineering Mechanics - Mechanical Engineering Questions and Answers

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The coefficient of restitution for inelastic bodies is

zero

one

between zero and one

more than one

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When the lift is moving upwards with some acceleration, the pressure exerted by a man is __________ proportional to its acceleration.

directly

inversely

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The term 'centroid' is

the same as centre of gravity

the point of suspension

the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis

none of the above

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Two forces are acting at an angle of 120°. The bigger force is 40N and the resultant is perpendicular to the smaller one. The smaller force is

20 N

40 N

80 N

none of these