Applied Mechanics and Graphic Statics The following is not a law of static friction: The force of friction always acts in a direction opposite to that in which the body tends to move The force of friction is dependent upon the area of contact The force of friction depends upon the roughness of the surface The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces The force of friction always acts in a direction opposite to that in which the body tends to move The force of friction is dependent upon the area of contact The force of friction depends upon the roughness of the surface The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is 0.4 0.3 0.5 0.55 0.4 0.3 0.5 0.55 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Which of the following is a scalar quantity? Impulse Torque Energy Momentum Impulse Torque Energy Momentum ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is 12.0 J 9.0 J 18.0 J 4.5 J 12.0 J 9.0 J 18.0 J 4.5 J 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 damped oscillatory motion a rectilinear motion with constant speed None of these a simple harmonic motion a damped oscillatory motion a rectilinear motion with constant speed None of these a simple harmonic motion ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The Centre of gravity of a 10 × 15 × 5 cm T section from its bottom, is 8.75 cm 7.5 cm 5.0 cm 7.85 cm 8.75 cm 7.5 cm 5.0 cm 7.85 cm ANSWER DOWNLOAD EXAMIANS APP
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