Engineering Mechanics The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is 3mr²/5 2mr²/3 mr²/3 2mr²/5 3mr²/5 2mr²/3 mr²/3 2mr²/5 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The loss of kinetic energy during inelastic impact, is given by (where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.) [m₁ m₂/2(m₁ + m₂)] (u₁² - u₂²) [m₁ m₂/2(m₁ + m₂)] (u₁ - u₂)² [2(m₁ + m₂)/m₁ m₂] (u₁ - u₂)² [2(m₁ + m₂)/m₁ m₂] (u₁² - u₂²) [m₁ m₂/2(m₁ + m₂)] (u₁² - u₂²) [m₁ m₂/2(m₁ + m₂)] (u₁ - u₂)² [2(m₁ + m₂)/m₁ m₂] (u₁ - u₂)² [2(m₁ + m₂)/m₁ m₂] (u₁² - u₂²) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as Limiting friction Dynamic friction Static friction Coefficient of friction Limiting friction Dynamic friction Static friction Coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will None of these Remain horizontal Slant up towards direction of pull Slant down towards direction of pull None of these Remain horizontal Slant up towards direction of pull Slant down towards direction of pull ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of percussion is below the centre of gravity of the body and is at a distance equal to kG2/h h × kG h2/kG h/kG kG2/h h × kG h2/kG h/kG ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be Downwards at its upper end Upwards at its upper end Zero at its upper end Perpendicular to the wall at its upper end Downwards at its upper end Upwards at its upper end Zero at its upper end Perpendicular to the wall at its upper end ANSWER DOWNLOAD EXAMIANS APP
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