Engineering Mechanics On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be Downwards at its upper end Away from the wall at its upper end Towards the wall at its upper end Upwards at its upper end Downwards at its upper end Away from the wall at its upper end Towards the wall at its upper end Upwards at its upper end ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of r/A r/2 0.134 r r/3 r/A r/2 0.134 r r/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Which of the following statement is incorrect? A machine whose efficiency is 100% is known as an ideal machine A force acting in the opposite direction to the motion of the body is called force of friction The velocity ratio of a machine is the ratio of load lifted to the effort applied The ratio of the limiting friction to the normal reaction is called coefficient of friction A machine whose efficiency is 100% is known as an ideal machine A force acting in the opposite direction to the motion of the body is called force of friction The velocity ratio of a machine is the ratio of load lifted to the effort applied The ratio of the limiting friction to the normal reaction is called coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The wheels of a moving car possess Kinetic energy of translation only Kinetic energy of translation and rotation both Kinetic energy of rotation only Potential energy only Kinetic energy of translation only Kinetic energy of translation and rotation both Kinetic energy of rotation only Potential energy only ANSWER DOWNLOAD EXAMIANS APP
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 energy Newton's first law of motion Newton's second law of motion Principle of conservation of momentum Principle of conservation of energy Newton's first law of motion Newton's second law of motion Principle of conservation of momentum ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The bodies which rebound after impact are called Elastic bodies Neither elastic nor inelastic bodies Inelastic bodies None of these Elastic bodies Neither elastic nor inelastic bodies Inelastic bodies None of these ANSWER DOWNLOAD EXAMIANS APP
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