Applied Mechanics and Graphic Statics The centre of gravity of a trapezoidal dam section whose top width is a, bottom width is band the vertical side is a, from its vertical face is (a² + ab + c²)/3 (a + c) (a² + ab + b²)/3 (a + b) (b² + bc + c²)/3 (b + c) None of these (a² + ab + c²)/3 (a + c) (a² + ab + b²)/3 (a + b) (b² + bc + c²)/3 (b + c) None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on A straight line Two straight lines A point A triangle A straight line Two straight lines A point A triangle ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is 4 sec 3 sec 2 sec 5 sec 4 sec 3 sec 2 sec 5 sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is 43833 44052 43839 43864 43833 44052 43839 43864 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If the angular distance, 0 = 2t³ ‑ 3t², the angular acceleration at t = 1 sec. is 1 rad/sec² 4 rad/sec² 12 rad/sec² 6 rad/sec² 1 rad/sec² 4 rad/sec² 12 rad/sec² 6 rad/sec² ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If ‘v’ and ‘ω’ are linear and angular velocities, the centripetal acceleration of a moving body along the circular path of radius ‘r’, will be ω²/r r/v² v²/r r/ω² ω²/r r/v² v²/r r/ω² ANSWER DOWNLOAD EXAMIANS APP
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