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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is (where g is acceleration due to gravity)

(2/5) g sin 0
(5/7) g sin0
(3/7) g sin 0
(1/3) g sin0

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Applied Mechanics and Graphic Statics
The centre of gravity of a homogeneous body is the point at which the whole

Weight of the body is assumed to be concentrated
Volume of the body is assumed to be concentrated
All listed here
Area of the surface of the body is assumed to be concentrated

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Applied Mechanics and Graphic Statics
A 49 kg lady stands on a spring scale in an elevator. During the first 5 sec, starting from rest, the scale reads 69 kg. The velocity of the elevator will be

20 m/sec
10 m/sec
25 m/sec
15 m/sec

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Applied Mechanics and Graphic Statics
A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at 3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is

1.0 m/sec
1.5 m/sec
0.5 m/sec
2.5 m/sec

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Applied Mechanics and Graphic Statics
A weight ‘W’ is suspended at the free end of a light member hinged to a vertical wall. If the angle of inclination of the member with the upper wall is θ°, the force introduced in the member, is

W sec θ
W sin θ
W cosec θ
W cos θ

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Applied Mechanics and Graphic Statics
A satellite is said to move in a synchronous orbit if it moves at an altitude of 36,000 km with a maximum velocity of about

8000 km per hour
9000 km per hour
11,000 km per hour
7000 km per hour

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