Engineering Mechanics If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is None of these g/3 g/4 g/2 None of these g/3 g/4 g/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion, P/m.a = 0 P + m.a = 0 P - m.a = 0 P × m.a = 0 P/m.a = 0 P + m.a = 0 P - m.a = 0 P × m.a = 0 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Whenever a force acts on a body and the body undergoes a displacement, then None of these Power is being transmitted Work is said to be done Body has kinetic energy of translation None of these Power is being transmitted Work is said to be done Body has kinetic energy of translation ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The friction experienced by a body, when in motion, is known as Static friction Limiting friction Dynamic friction Rolling friction Static friction Limiting friction Dynamic friction Rolling friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the balls with velocity ‘v’ is made to strike the second ball. Both the balls after impact will move with a velocity v v/4 v/8 v/2 v v/4 v/8 v/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The efficiency of a lifting machine is the ratio of All of these Output to the input Work done by the machine to the work done on the machine Mechanical advantage to the velocity ratio All of these Output to the input Work done by the machine to the work done on the machine Mechanical advantage to the velocity ratio ANSWER DOWNLOAD EXAMIANS APP
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