Engineering Mechanics If the body falls freely under gravity, then the gravitational acceleration is taken as -9.8 m/s2 +9.8 m/s2 -8.9 m/s2 +8.9 m/s2 -9.8 m/s2 +9.8 m/s2 -8.9 m/s2 +8.9 m/s2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that tanθ = ΣH/ΣV tanθ = ΣV/ΣH tanθ = ΣV × ΣH tanθ = √(ΣV + ΣH) tanθ = ΣH/ΣV tanθ = ΣV/ΣH tanθ = ΣV × ΣH tanθ = √(ΣV + ΣH) 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 = Ah2 / IG IP = IG + Ah2 IP = IG - Ah2 IP = IG / Ah2 IP = Ah2 / IG IP = IG + Ah2 IP = IG - Ah2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a square of side (a) about an axis through its center of gravity is a4/8 a4/36 a4/12 a4/4 a4/8 a4/36 a4/12 a4/4 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/3 MS/5 MS/4 None of these MS/3 MS/5 MS/4 None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of angular acceleration is m/s N-m rad/s2 m/s2 m/s N-m rad/s2 m/s2 ANSWER DOWNLOAD EXAMIANS APP
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