Engineering Mechanics The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.) 2π × ω 2π/ω π/ω ω/2π 2π × ω 2π/ω π/ω ω/2π ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The time of flight (t) of a projectile on a horizontal plane is given by t = 2u. sinα/g t = 2u/g.sinα t = 2u. tanα/g t = 2u. cosα/g t = 2u. sinα/g t = 2u/g.sinα t = 2u. tanα/g t = 2u. cosα/g ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is 3mr²/10 2mr²/5 4mr²/5 3mr²/5 3mr²/10 2mr²/5 4mr²/5 3mr²/5 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of percussion of the homogeneous rod of length ‘L’ suspended at the top will be 3L/4 2L/3 L/3 L/2 3L/4 2L/3 L/3 L/2 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 Slant down towards direction of pull Slant up towards direction of pull Remain horizontal None of these Slant down towards direction of pull Slant up towards direction of pull Remain horizontal ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.) MS/4 MS/5 MS/3 None of these MS/4 MS/5 MS/3 None of these ANSWER DOWNLOAD EXAMIANS APP
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