Applied Mechanics and Graphic Statics A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is n rpm 2n rpm n/4 rpm n/2 rpm n rpm 2n rpm n/4 rpm n/2 rpm ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics When two forces, each equal to P, act at 90° to each other, then the resultant will be P 2P P/√2 P√2 P 2P P/√2 P√2 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The following is not a law of static friction: 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 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 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is 60 N 120 N 100 N 80 N 60 N 120 N 100 N 80 N ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The maximum frictional force which comes into play, when a body just begins to slide over the surface of a another body, is known Rolling friction Limiting friction None of these Sliding friction Rolling friction Limiting friction None of these Sliding friction ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The angle of projection at which the horizontal range and maximum height of a projectile are equal to 76° 56° 36° 45° 76° 56° 36° 45° ANSWER DOWNLOAD EXAMIANS APP
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