Engineering Mechanics The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by Q / P P - Q P + Q P / Q Q / P P - Q P + Q P / Q ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Which of the following statement is correct in connection with projectiles? The angle, with the horizontal, at which a projectile is projected, is known as angle of projection. All of these A path, traced by a projectile in the space, is known as trajectory. The velocity, with which a projectile is projected, is known as the velocity of projection. The angle, with the horizontal, at which a projectile is projected, is known as angle of projection. All of these A path, traced by a projectile in the space, is known as trajectory. The velocity, with which a projectile is projected, is known as the velocity of projection. ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The ratio of static friction to dynamic friction is always None of these Equal to one Less than one Greater than one None of these Equal to one Less than one Greater than one ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The Cartesian equation of trajectory is (where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.) y = x. tanα - (gx²/2u² cos²α) y = (gx²/2u² cos²α) - x. tanα y = x. tanα + (gx²/2u² cos²α) y = (gx²/2u² cos²α) + x. tanα y = x. tanα - (gx²/2u² cos²α) y = (gx²/2u² cos²α) - x. tanα y = x. tanα + (gx²/2u² cos²α) y = (gx²/2u² cos²α) + x. tanα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The efficiency of a lifting machine is the ratio of All of these Mechanical advantage to the velocity ratio Work done by the machine to the work done on the machine Output to the input All of these Mechanical advantage to the velocity ratio Work done by the machine to the work done on the machine Output to the input ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Which of the following statement is incorrect? The velocity ratio of a machine is the ratio of load lifted to the effort applied 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 ratio of the limiting friction to the normal reaction is called coefficient of friction The velocity ratio of a machine is the ratio of load lifted to the effort applied 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 ratio of the limiting friction to the normal reaction is called coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
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