Engineering Mechanics The time of flight (t) of a projectile on a horizontal plane is given by t = 2u. tanα/g t = 2u. cosα/g t = 2u. sinα/g t = 2u/g.sinα t = 2u. tanα/g t = 2u. cosα/g t = 2u. sinα/g t = 2u/g.sinα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The ratio of limiting friction and normal reaction is known as Sliding friction Angle of repose Coefficient of friction Angle of friction Sliding friction Angle of repose Coefficient of friction Angle of friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is D / d D + d D × d D - d D / d D + d D × d D - d ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.) P = m/W + C P = mW + C P = C - mW P = mW - C P = m/W + C P = mW + C P = C - mW P = mW - C ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction. Equal to Less than Greater than None of these Equal to Less than Greater than None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is None of these Reversible Ideal Non-reversible None of these Reversible Ideal Non-reversible ANSWER DOWNLOAD EXAMIANS APP
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