Engineering Mechanics An ideal machine is one whose efficiency is Between 60 and 70 % 1 Between 80 and 90% Between 70 and 80% Between 60 and 70 % 1 Between 80 and 90% Between 70 and 80% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a square of side a about its diagonal is a²/8 a⁴/12 a³/12 a⁴/16 a²/8 a⁴/12 a³/12 a⁴/16 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is _________ the momentum of body having mass m2. None of these Equal to Greater than Less than None of these Equal to Greater than Less than ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is 2mr²/3 mr²/2 2mr²/5 mr² 2mr²/3 mr²/2 2mr²/5 mr² 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.) [2(m₁ + m₂)/m₁ m₂] (u₁² - u₂²) [2(m₁ + m₂)/m₁ m₂] (u₁ - u₂)² [m₁ m₂/2(m₁ + m₂)] (u₁² - u₂²) [m₁ m₂/2(m₁ + m₂)] (u₁ - u₂)² [2(m₁ + m₂)/m₁ m₂] (u₁² - u₂²) [2(m₁ + m₂)/m₁ m₂] (u₁ - u₂)² [m₁ m₂/2(m₁ + m₂)] (u₁² - u₂²) [m₁ m₂/2(m₁ + m₂)] (u₁ - u₂)² ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is mr²/4 mr²/8 mr²/6 mr²/2 mr²/4 mr²/8 mr²/6 mr²/2 ANSWER DOWNLOAD EXAMIANS APP
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