Applied Mechanics and Graphic Statics A particle moves in a straight line and its position is defined by the equation x = 6 t² - t3 where t is expressed in seconds and ‘x’ in meters. The maximum velocity during the motion is 24 m/sec 48 m/sec 12 m/sec 6 m/sec 24 m/sec 48 m/sec 12 m/sec 6 m/sec 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 Negative work Imaginary work Virtual work None of these Negative work Imaginary work Virtual work None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics For a non-concurrent force system to be in equilibrium Both force polygon and funicular polygon must close None of these Only the closure of force polygon is sufficient Only the closure of funicular polygon is sufficient Both force polygon and funicular polygon must close None of these Only the closure of force polygon is sufficient Only the closure of funicular polygon is sufficient ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A 49 kg lady stands on a spring scale in an elevator. During the first 5 sec, starting from rest, the scale reads 69 kg. The velocity of the elevator will be 10 m/sec 25 m/sec 20 m/sec 15 m/sec 10 m/sec 25 m/sec 20 m/sec 15 m/sec 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 r2 log r r 1/r r2 log r r ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The condilion for a lifting machine to be reversible is that its efficiency should be equal to 100% less than 50% more than 50% more than 66.67% equal to 100% less than 50% more than 50% more than 66.67% ANSWER DOWNLOAD EXAMIANS APP
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