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Engineering Mechanics

Engineering Mechanics
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

Less than
None of these
Greater than
Equal to

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Engineering Mechanics
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is

3mr²/10
4mr²/5
2mr²/5
3mr²/5

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Engineering Mechanics
Static friction is always __________ dynamic friction.

Less than
None of these
Greater than
Equal to

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Engineering Mechanics
Moment of inertia of a circular section about its diameter (d) is

πd3/16
πd4/32
πd4/64
πd3/32

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Engineering Mechanics
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as

None of these
Newton's third law of motion
Newton's first law of motion
Newton's second law of motion

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Engineering Mechanics
Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.

Downwards
None of these
Upwards
Horizontal

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