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 a = α.r None of these a = α/ r a = r / α a = α.r None of these a = α/ r a = r / α ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The total energy possessed by a system of moving bodies Is minimum in the start and maximum at the end Is constant at every instant Is maximum in the start and minimum at the end Varies from point to point Is minimum in the start and maximum at the end Is constant at every instant Is maximum in the start and minimum at the end Varies from point to point 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 100 50 200 400 100 50 200 400 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.) ω.√(r² - y²) ω².√(r² - y²) ω.√(y² - r²) ω².√(y² - r²) ω.√(r² - y²) ω².√(r² - y²) ω.√(y² - r²) ω².√(y² - r²) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The static friction Bears a constant ratio to the normal reaction between the two surfaces Always acts in a direction, opposite to that in which the body tends to move All of these Is independent of the area of contact, between the two surfaces Bears a constant ratio to the normal reaction between the two surfaces Always acts in a direction, opposite to that in which the body tends to move All of these Is independent of the area of contact, between the two surfaces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum mechanical advantage of a lifting machine is m 1 / m 1 + m 1 - m m 1 / m 1 + m 1 - m ANSWER DOWNLOAD EXAMIANS APP
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