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 Newton's first law of motion Principle of conservation of energy Newton's second law of motion Principle of conservation of momentum Newton's first law of motion Principle of conservation of energy Newton's second law of motion Principle of conservation of momentum ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The efficiency of a lifting machine is the ratio of Mechanical advantage to the velocity ratio Output to the input All of these Work done by the machine to the work done on the machine Mechanical advantage to the velocity ratio Output to the input All of these Work done by the machine to the work done on the machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Center of gravity of a thin hollow cone lies on the axis at a height of One-third of the total height above base One-fourth of the total height above base Three-eighth of the total height above the base One-half of the total height above base One-third of the total height above base One-fourth of the total height above base Three-eighth of the total height above the base One-half of the total height above base ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum mechanical advantage of a lifting machine is 1 + m 1 / m m 1 - m 1 + m 1 / m m 1 - m ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A pendulum which executes one beat per second is known as Second's pendulum Compound pendulum Simple pendulum Torsional pendulum Second's pendulum Compound pendulum Simple pendulum Torsional pendulum ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A machine having an efficiency less than 50%, is known as Neither reversible nor non-reversible machine Reversible machine Ideal machine Non-reversible machine Neither reversible nor non-reversible machine Reversible machine Ideal machine Non-reversible machine ANSWER DOWNLOAD EXAMIANS APP
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