For a non-concurrent force system to be in equilibrium__________________?
A. only the closure of force polygon is sufficient
B. only the closure of funicular polygon is sufficient C. both force polygon and funicular polygon must close(Correct)
D. none of the above
The total kinetic energy of a hoop of mass 2 kg and radius 4 m sliding with linear velocity 8 m/sec and angular velocity 5 radian/sec is_________________?
A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first ?
A. sphere with greater rotational energy at bottom than cylinder B. sphere with lesser rotational energy at bottom than cylinder (Ccrrect)
C. cylinder with greater rotational energy at bottom than sphere
D. both reach the bottom simultaneously with equal rotational energy at bottom