Engineering Mechanics If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by (v₂ - v₁)/(u₁ - u₂) (u₁ - u₂)/(v₁ - v₂) (v₁ - v₂)/(u₁ - u₂) (u₂ + u₁)/(v₂ + v₁) (v₂ - v₁)/(u₁ - u₂) (u₁ - u₂)/(v₁ - v₂) (v₁ - v₂)/(u₁ - u₂) (u₂ + u₁)/(v₂ + v₁) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load. None of these Less than Equal to More than None of these Less than Equal to More than ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The acceleration of a particle moving with simple harmonic motion, at any instant is given by ω3.y ω.y ω2/y ω2.y ω3.y ω.y ω2/y ω2.y ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of angular velocity is rad/s Both (B) and (C) m/min Revolutions/min rad/s Both (B) and (C) m/min Revolutions/min ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is β/2 60° + β/2 30° + β/2 45° + β/2 β/2 60° + β/2 30° + β/2 45° + β/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum frictional force which comes into play when a body just begins to slide over another surface is called Limiting friction Sliding friction Kinematic friction Rolling friction Limiting friction Sliding friction Kinematic friction Rolling friction ANSWER DOWNLOAD EXAMIANS APP
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