Applied Mechanics and Graphic Statics If two forces are in equilibrium, then the forces must(i) Be equal in magnitude(ii) Be opposite in sense(iii) Act along the same line Only (i) (i) and (ii) All (i), (ii) and (iii) (i) and (iii) Only (i) (i) and (ii) All (i), (ii) and (iii) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
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 4 3 5 2 4 3 5 2 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight Vertical component of velocity remains constant Speed of the ball remains constant Kinetic energy of the ball remains constant Horizontal component of velocity remains constant Vertical component of velocity remains constant Speed of the ball remains constant Kinetic energy of the ball remains constant Horizontal component of velocity remains constant ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is a simple harmonic motion None of these a rectilinear motion with constant speed a damped oscillatory motion a simple harmonic motion None of these a rectilinear motion with constant speed a damped oscillatory motion ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The height at which the end of a rope of length ‘l’ should be tied so that a man pulling at the other end may have the greatest tendency to overturn the pillar, is ¾ l 2/√3 l ½ l l/√2 ¾ l 2/√3 l ½ l l/√2 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If two forces each equal to ‘T’ in magnitude act at right angles, their effect may be neutralized by a third force acting along their bisector in opposite direction whose magnitude will be 3 T 1/2 T √2 T 2 T 3 T 1/2 T √2 T 2 T ANSWER DOWNLOAD EXAMIANS APP
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