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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
The velocity of a body fallen from height ‘h’, on reaching the ground is given by

v = 1/√(2gh)
v = 2gh
v = √(2gh)
v = 2gh²

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Applied Mechanics and Graphic Statics
A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2A, the energy becomes

E
2E
E/2
4E

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Applied Mechanics and Graphic Statics
If y is force and x is velocity, then dimensions of —=r are dx2

M2L’T3
M’^T’
M’L-‘T0
M’L-‘T1

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Applied Mechanics and Graphic Statics
A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec²)

15 m/sec
40 m/sec
25 m/sec
50 m/sec

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

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Applied Mechanics and Graphic Statics
The angular speed of a car while taking a circular turn of radius 100 m at 36 km/hour, is

1 radian/sec
0.1 radian/sec
1000 radian/sec
100 radian/sec

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