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 In order to completely specify angular displacement by a vector, it must fix All of these Direction of the axis of rotation Magnitude of angular displacement Sense of angular displacement All of these Direction of the axis of rotation Magnitude of angular displacement Sense of angular displacement ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction. None of these Not be effected Decrease Increase None of these Not be effected Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is 40 N 20 N 120 N None of the listed here 40 N 20 N 120 N None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The resultant of the two forces ‘P’ and ‘Q’ is ‘R’. If ‘Q’ is doubled, the new resultant is perpendicular to ‘P’. Then Q = R P = Q Q = 2R None of the listed here Q = R P = Q Q = 2R None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The algebraic sum of moments of the forces forming couple about any point in their plane is Constant Both of above are wrong Equal to the moment of the couple Both of above are correct Constant Both of above are wrong Equal to the moment of the couple Both of above are correct ANSWER DOWNLOAD EXAMIANS APP
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