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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
Time of flight of a projectile on a horizontal plane, is

2u cosα/g
2u cotα/g
2u tanα/g
2u sinα/g

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Applied Mechanics and Graphic Statics
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ? i. 1.0 in from the wall ii. 1.732 m from the wall iii. 1.0 m above the floor iv. 1.732 m above the floor The correct answer is

(ii) and (iv)
(i) and (iv)
(ii) and (iii)
(i) and (iii)

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Applied Mechanics and Graphic Statics
The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is

43894
2
43834
43832

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Applied Mechanics and Graphic Statics
A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration

As it strikes the ground
Elsewhere
At the start
At the top of the trajectory

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Applied Mechanics and Graphic Statics
The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

237.5 cm⁴
437.5 cm⁴
137.5 cm⁴
337.5 cm⁴

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Applied Mechanics and Graphic Statics
A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is Applied Mechanics and Graphic Statics mcq question image

100 kg
150 kg
120 kg
130 kg

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