Engineering Mechanics The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius. 8r/3 3r/ 8 4r/ 3π 3r/4π 8r/3 3r/ 8 4r/ 3π 3r/4π ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The acceleration of a particle moving with simple harmonic motion is __________ at the mean position. None of these Maximum Zero Minimum None of these Maximum Zero Minimum ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.) IP = IG + Ah2 IP = IG / Ah2 IP = Ah2 / IG IP = IG - Ah2 IP = IG + Ah2 IP = IG / Ah2 IP = Ah2 / IG IP = IG - Ah2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force. Less than Greater than Equal to None of these Less than Greater than Equal to None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a sphere of mass 'm' and radius 'r', about an axis tangential to it, is 7mr²/3 7mr²/5 2mr²/5 2mr²/3 7mr²/3 7mr²/5 2mr²/5 2mr²/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Work done is said to be zero, when No force acts on a body but some displacement takes place Either (A) or (B) None of these Some force acts on a body, but displacement is zero No force acts on a body but some displacement takes place Either (A) or (B) None of these Some force acts on a body, but displacement is zero ANSWER DOWNLOAD EXAMIANS APP
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