Engineering Mechanics The friction experienced by a body, when at rest, is known as Coefficient of friction Dynamic friction Limiting friction Static friction Coefficient of friction Dynamic friction Limiting friction Static friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The horizontal range of a projectile (R) is given by R = u² sinα/g R = u² sin2α/g R = u² cosα/g R = u² cos2α/g R = u² sinα/g R = u² sin2α/g R = u² cosα/g R = u² cos2α/g 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 200 100 50 400 200 100 50 400 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is 100 N None of these 20 N 500 N 100 N None of these 20 N 500 N ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) None of these tanα/tan (α + φ) tan(α - φ)/tanα tan(α + φ)/tanα None of these tanα/tan (α + φ) tan(α - φ)/tanα tan(α + φ)/tanα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following: Both the balls undergo an equal change in momentum None of these The change in momentum suffered by rubber ball is more than the lead ball The change in momentum suffered by rubber ball is less than the lead ball Both the balls undergo an equal change in momentum None of these The change in momentum suffered by rubber ball is more than the lead ball The change in momentum suffered by rubber ball is less than the lead ball ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS