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 third law of motion Newton's first law of motion Newton's second law of motion None of these Newton's third law of motion Newton's first law of motion Newton's second law of motion None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The acceleration of a body sliding down an inclined surface is g sinθ None of these g cosθ g tanθ g sinθ None of these g cosθ g tanθ ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.) P = W (sinα + μcosα) P = W (cosα + μsinα) P = W tan (α + φ) P = W tanα P = W (sinα + μcosα) P = W (cosα + μsinα) P = W tan (α + φ) P = W tanα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of angular velocity is Revolutions/min Both (B) and (C) rad/s m/min Revolutions/min Both (B) and (C) rad/s m/min ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a square of side a about its diagonal is a²/8 a³/12 a⁴/12 a⁴/16 a²/8 a³/12 a⁴/12 a⁴/16 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A screw jack used for lifting the loads is A non-reversible machine A reversible machine An ideal machine None of these A non-reversible machine A reversible machine An ideal machine None of these ANSWER DOWNLOAD EXAMIANS APP
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