The shape of a suspended cable under its own weight, is parabolic circular caten

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Question
The shape of a suspended cable under its own weight, is
Options
A. parabolic
B. circular
C. catenary
D. elliptical.

Correct Answer

catenary

Applied Mechanics problems

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1. The resolved part of the resultant of two forces inclined at an angle ? in a given direction is
Options
A. algebraic sum of the resolved parts of the forces in the direction
B. arithmetical sum of the resolved parts of the forces in the direction
C. difference of the forces multiplied by cosine ?�
D. sum of the forces multiplied by the sine ?
E. sum of the forces multiplied by the tangent ?�.

3. Ball A of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after impact would be
Options
A. zero
B. 5 m/sec
C. 10 m/sec
D. none of these.

5. Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation
Options
A. is directly proportional to their velocity of approach
B. is inversely proportional to their velocity of approach
C. bears a constant ratio to their velocity of approach
D. is equal to the sum of their velocities of approach.

6. When a body of mass M₁ is hanging freely and an other of mass M₂ lying on a smooth inclined plane(?) are connected by a light indextensible string passing over a smooth pulley, the acceleration of the body of mass M₁, will be given by
Options
A.
B.
C.
D.

7. One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The tension in the string is
Options
A. 17.5 kg
B. 19.5 kg
C. 22.5 kg
D. 25 kg.

10. To avoid bending action at the base of a pier,
Options
A. suspension and anchor cables are kept at the same level
B. suspension and anchor cables are fixed to pier top
C. suspension cable and anchor cables are attached to a saddle mounted on rollers on top of the pier
D. none the these.

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