Applied Mechanics and Graphic Statics A hoop of radius 3 m weighs 100 kg. It rolls along a horizontal floor so that at its centre of mass has a speed of 200 mm/sec. The work required to stop the hoop is 2 J 4 J 8 J 6 J 2 J 4 J 8 J 6 J ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth) 1/r r log r r2 1/r r log r r2 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 meters. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is 10.88 m/sec 5.88 m/sec 12.88 m/sec 8.88 m/sec 10.88 m/sec 5.88 m/sec 12.88 m/sec 8.88 m/sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics For a body moving with simple harmonic motion, the number of cycles per second, is known as its Frequency Oscillation Amplitude Periodic time Frequency Oscillation Amplitude Periodic time ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as Virtual work Negative work Imaginary work None of these Virtual work Negative work Imaginary work None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is Q/P P/Q P + Q P - Q Q/P P/Q P + Q P - Q ANSWER DOWNLOAD EXAMIANS APP
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