Engineering Mechanics In a screw jack, the effort required to lift the load is given by (where W = Load lifted, α = Helix angle, and φ = Angle of friction.) P = W tan (α - φ) P = W cos (α + φ) P = W tan (φ - α) P = W tan (α + φ) P = W tan (α - φ) P = W cos (α + φ) P = W tan (φ - α) P = W tan (α + φ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is (kG² + h²)/h² h²/(kG² + h²) (kG² + h²)/h h/(kG² + h²) (kG² + h²)/h² h²/(kG² + h²) (kG² + h²)/h h/(kG² + h²) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum velocity of a particle moving with simple harmonic motion is ωr ω2r ω ω/r ωr ω2r ω ω/r ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The forces, which meet at one point, but their lines of action do not lie in a plane, are called Non-coplanar concurrent forces Intersecting forces Non-coplanar non-concurrent forces Coplanar non-concurrent forces Non-coplanar concurrent forces Intersecting forces Non-coplanar non-concurrent forces Coplanar non-concurrent forces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane. Either ‘A’ or ‘B’ Meet None of these Do not meet Either ‘A’ or ‘B’ Meet None of these Do not meet ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that tanθ = ΣV/ΣH tanθ = √(ΣV + ΣH) tanθ = ΣV × ΣH tanθ = ΣH/ΣV tanθ = ΣV/ΣH tanθ = √(ΣV + ΣH) tanθ = ΣV × ΣH tanθ = ΣH/ΣV ANSWER DOWNLOAD EXAMIANS APP
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