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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t²+ 5. The ratio of the accelerations after 5 sec and 3 sec will be

5
4
3
2

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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)

43832
43833
43835
43834

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Applied Mechanics and Graphic Statics
A rope is wrapped twice around a rough pole with a coefficient of friction ‘A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is

e2*
e*72
e4*
1

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Applied Mechanics and Graphic Statics
For a simple pendulum, time period for a beat, is

π √(2l/g)
π √(l/g)
π √(l/2g)
π √(g/2l)

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Applied Mechanics and Graphic Statics
The frequency of oscillation on moon as compared to that on earth, will be

3 times less
3 times more
2.44 times less
2.44 times more

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Applied Mechanics and Graphic Statics
A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is,

25 N
5 N
10 N
15 N

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