Engineering Mechanics The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.) 2π × ω π/ω 2π/ω ω/2π 2π × ω π/ω 2π/ω ω/2π ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad/s2, is None of these a = α.r a = r / α a = α/ r None of these a = α.r a = r / α a = α/ r ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is 200 400 100 50 200 400 100 50 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 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 (u₂ + u₁)/(v₂ + v₁) (v₂ - v₁)/(u₁ - u₂) (v₁ - v₂)/(u₁ - u₂) (u₁ - u₂)/(v₁ - v₂) (u₂ + u₁)/(v₂ + v₁) (v₂ - v₁)/(u₁ - u₂) (v₁ - v₂)/(u₁ - u₂) (u₁ - u₂)/(v₁ - v₂) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If n = number of members and y = number of joints, then for a perfect frame, n = ? 43832 43865 43892 43864 43832 43865 43892 43864 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS