Engineering Mechanics The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius. 3r/4π 8r/3 3r/ 8 4r/ 3π 3r/4π 8r/3 3r/ 8 4r/ 3π 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 force, by which the body is attracted, towards the center of the earth, is called Impulsive force Momentum Weight Mass Impulsive force Momentum Weight Mass ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion, P/m.a = 0 P - m.a = 0 P + m.a = 0 P × m.a = 0 P/m.a = 0 P - m.a = 0 P + m.a = 0 P × m.a = 0 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum mechanical advantage of a lifting machine is 1 / m m 1 + m 1 - m 1 / m m 1 + m 1 - m ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.) (1/2π). √(g/l) 2π. √(l/g) (1/2π). √(l/g) None of these (1/2π). √(g/l) 2π. √(l/g) (1/2π). √(l/g) None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS