Engineering Mechanics The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called Principle of conservation of momentum Newton's second law of motion Principle of conservation of energy Newton's first law of motion Principle of conservation of momentum Newton's second law of motion Principle of conservation of energy Newton's first law of motion ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In order to determine the effects of a force, acting on a body, we must know All of these Magnitude of the force Line of action of the force Nature of the force i.e. whether the force is push or pull All of these Magnitude of the force Line of action of the force Nature of the force i.e. whether the force is push or pull ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The rate of change of displacement of a body is called Velocity Momentum Acceleration None of these Velocity Momentum Acceleration None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) None of these tan(α + φ)/tanα tan(α - φ)/tanα tanα/tan (α + φ) None of these tan(α + φ)/tanα tan(α - φ)/tanα tanα/tan (α + φ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The motion of a particle round a fixed axis is Circular Translatory as well as rotary Rotary Translatory Circular Translatory as well as rotary Rotary Translatory ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A smooth cylinder lying on a __________ is in neutral equilibrium. None of these Horizontal surface Convex surface Curved surface None of these Horizontal surface Convex surface Curved surface ANSWER DOWNLOAD EXAMIANS APP
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