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 Newton's first law of motion Principle of conservation of energy Principle of conservation of momentum Newton's second law of motion Newton's first law of motion Principle of conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum frictional force which comes into play when a body just begins to slide over another surface is called Limiting friction Kinematic friction Sliding friction Rolling friction Limiting friction Kinematic friction Sliding friction Rolling friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is 2mr²/5 mr²/3 2mr²/3 3mr²/5 2mr²/5 mr²/3 2mr²/3 3mr²/5 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The angular velocity (in rad/s) of a body rotating at N revolutions per minute is 2πN/60 2πN/180 πN/60 πN/180 2πN/60 2πN/180 πN/60 πN/180 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Moment of inertia is the Second moment of mass Second moment of force All of these Second moment of area Second moment of mass Second moment of force All of these Second moment of area ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.) t = 2u sin (α - β)/g cos β t = g cos β/2u sin (α - β) t = 2u sin (α + β)/g cos β t = g cos β/2u sin (α + β) t = 2u sin (α - β)/g cos β t = g cos β/2u sin (α - β) t = 2u sin (α + β)/g cos β t = g cos β/2u sin (α + β) ANSWER DOWNLOAD EXAMIANS APP
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