Engineering Mechanics The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as Newton's first law of motion Newton's third law of motion Newton's second law of motion None of these Newton's first law of motion Newton's third law of motion Newton's second law of motion None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be r/A 2r/3 r/2 3r/2 r/A 2r/3 r/2 3r/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics For a self locking machine, the efficiency must be Equal to 50% Less than 50% Greater than 50% 1 Equal to 50% Less than 50% Greater than 50% 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is None of these Ideal Non-reversible Reversible None of these Ideal Non-reversible Reversible ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is 2D/(d₁ - d₂) 2D/(d₁ + d₂) D/(d₁ - d₂) D/(d₁ + d₂) 2D/(d₁ - d₂) 2D/(d₁ + d₂) D/(d₁ - d₂) D/(d₁ + d₂) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Non-coplanar non-concurrent forces are those forces which Do not meet at one point and their lines of action do not lie on the same plane Do not meet at one point but their lines of action lie on the same plane Meet at one point, but their lines of action do not lie on the same plane None of these Do not meet at one point and their lines of action do not lie on the same plane Do not meet at one point but their lines of action lie on the same plane Meet at one point, but their lines of action do not lie on the same plane None of these ANSWER DOWNLOAD EXAMIANS APP
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