A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
B. prism
C. both equally stable
D. none of the above
B. prism
C. both equally stable
D. none of the above
B. prism
C. both equally stable
D. none of the above
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If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is_____________________?
If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is_____________________? A. —rad/sec 10
B. —rad/sec 20
C. —rad/sec 30(Correct)
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A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is______________________? A. 3/4
B. 4/5
C. 5/3
D. 3/5(Correct)The member forces in a statically in determinate truss____________________?
The member forces in a statically in determinate truss____________________? A. can be obtained by graphic statics
B. cannot be obtained by graphic statics(Correct)
C. may be obtained by graphic statics
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B. vertical ordinate of the arch
C. intercept between the arch axis and the funicular polygon(Correct)
D. none of these