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 In actual machines, mechanical advantage is _________ velocity ratio. Equal to Greater than Less than None of these Equal to Greater than Less than None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a sphere of mass 'm' and radius 'r', about an axis tangential to it, is 2mr²/5 7mr²/5 2mr²/3 7mr²/3 2mr²/5 7mr²/5 2mr²/3 7mr²/3 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 = g cos β/2u sin (α + β) t = g cos β/2u sin (α - β) t = 2u sin (α - β)/g cos β t = 2u sin (α + β)/g cos β t = g cos β/2u sin (α + β) t = g cos β/2u sin (α - β) t = 2u sin (α - β)/g cos β t = 2u sin (α + β)/g cos β 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 If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella Less inclined when standing More inclined when standing More inclined when moving Less inclined when moving Less inclined when standing More inclined when standing More inclined when moving Less inclined when moving ANSWER DOWNLOAD EXAMIANS APP
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