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Engineering Mechanics

Engineering Mechanics
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

2n - 1
n
n²
2n

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Engineering Mechanics
The law of motion involved in the recoil of gun is

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

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Engineering Mechanics
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

More inclined when standing
Less inclined when standing
Less inclined when moving
More inclined when moving

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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
3mr²/5
4mr²/5
2mr²/5

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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

2v
8v
4v
v

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Engineering Mechanics
A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of

1 m
4 m
3 m
2 m

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MORE MCQ ON Engineering Mechanics

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