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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about (Assume g = 10 m/sec²)

43834
43833
43832
43835

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Applied Mechanics and Graphic Statics
For a given velocity of a projectile, the range is maximum when the angle of projection is

45°
0°
30°
90°

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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

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

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Applied Mechanics and Graphic Statics
A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are

1346.3 kN and 1250 kN
1346.3 kN and 1500 kN
1436.2 kN and 1500 kN
1436.2 kN and 1250 kN

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Applied Mechanics and Graphic Statics
The acceleration of a train starting from rest at any instant is 1/6(V + 1) m/sec² where ‘V’ is the velocity of the train in m/sec. The train will attain a velocity of 36 km/hour after travelling a distance of

2300 m
2100 m
2000 m
2200 m

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Applied Mechanics and Graphic Statics
Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction.The speeds of the objects are:

3 m/sec and 3 m/sec
3 m/sec and 2 m/sec
4 m/sec and 6 m/sec
2 m/sec and 2 m/sec

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