Applied Mechanics and Graphic Statics The following is not a law of static friction: The force of friction is dependent upon the area of contact The force of friction depends upon the roughness of the surface The force of friction always acts in a direction opposite to that in which the body tends to move The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces The force of friction is dependent upon the area of contact The force of friction depends upon the roughness of the surface The force of friction always acts in a direction opposite to that in which the body tends to move 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 stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is, 15 N 5 N 25 N 10 N 15 N 5 N 25 N 10 N ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of One-fourth of the total height above base One-half of the total height above base None of these One-third of the total height above base One-fourth of the total height above base One-half of the total height above base None of these One-third of the total height above base ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The motion of a particle is described by the relation x = t²- 10t + 30, where x is in meters and t in seconds. The total distance travelled by the particle from t = 0 to t = 10 seconds would be 50 m 60 m Zero 30 m 50 m 60 m Zero 30 m ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is 50 kg 120 kg 100 kg 750 kg 50 kg 120 kg 100 kg 750 kg ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts Downwards at its upper end Upwards at its upper end Away from the wall at its upper end Towards the wall at its upper end Downwards at its upper end Upwards at its upper end Away from the wall at its upper end Towards the wall at its upper end ANSWER DOWNLOAD EXAMIANS APP