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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
When a body slides down an inclined surface, the acceleration (f) of the body, is given by

f = g tan θ
f = g
f = g sin θ
f = g cos θ

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Applied Mechanics and Graphic Statics
For a non-concurrent force system to be in equilibrium

Only the closure of force polygon is sufficient
Both force polygon and funicular polygon must close
None of these
Only the closure of funicular polygon is sufficient

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Applied Mechanics and Graphic Statics
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 reaction between the sphere and the wall of the arrangement made is

102.5 kg
105.5 kg
108.5 kg
110 kg

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Applied Mechanics and Graphic Statics
Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is

1/3
3/5
2/3
1/5

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Applied Mechanics and Graphic Statics
To double the period of oscillation of a simple pendulum

The mass of its bob should be doubled
Its length should be quadrupled
The mass of its bob should be quadrupled
Its length should be doubled

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Applied Mechanics and Graphic Statics
A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is

0.75 m/sec²
1.00 m/sec²
1.25 m/sec²
0.5 m/sec²

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