Engineering Mechanics The time of flight (t) of a projectile on a horizontal plane is given by 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 t = 2u. sinα/g ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In order to completely specify angular displacement by a vector, it must fix Magnitude of angular displacement All of these Sense of angular displacement Direction of the axis of rotation Magnitude of angular displacement All of these Sense of angular displacement Direction of the axis of rotation ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics An ideal machine is one whose efficiency is Between 80 and 90% Between 60 and 70 % 1 Between 70 and 80% Between 80 and 90% Between 60 and 70 % 1 Between 70 and 80% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h) None of these Less than Greater than Equal to None of these Less than Greater than Equal to ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum efficiency of a screw jack is (1 + tanφ)/(1 - tanφ) (1 + sinφ)/(1 - sinφ) (1 - sinφ)/(1 + sinφ) (1 - tanφ)/(1 + tanφ) (1 + tanφ)/(1 - tanφ) (1 + sinφ)/(1 - sinφ) (1 - sinφ)/(1 + sinφ) (1 - tanφ)/(1 + tanφ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is 0.5 Iω2 Iω2 0.5 Iω Iω 0.5 Iω2 Iω2 0.5 Iω Iω ANSWER DOWNLOAD EXAMIANS APP
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