At a roller support the line of reaction and the roller base must be at an angle of
A.not more than 60?
B.not less than 60?
C.60?
D.90?
A.not more than 60?
B.not less than 60?
C.60?
D.90?
A.proportional to the respective masses of the bodies
B.inversely proportional to the respective masses of the bodies
C.inversely proportional to the square of the respective masses of the bodies
D.directly proportional to the square of the respective masses of the bodies
A.Proportional to the coefficient of static friction
B.Proportional to the coefficient of dynamic friction
C.Indeterminate
D.Determinate but depends on the acceleration of the cylinder
A.Pressure and surface tension
B.Work and kinetic energy
C.Momentum and force
D.Moment of inertia and angular momentum
E.None of the above
A.Increase
B.Decrease
C.Not change
D.Decrease but reduction depends on viscosity of oil
E.None of the above
A.Angle of repose
B.Angle of friction
C.Angle of banking
D.Angle of reaction
E.None of the above
A.Maximum kinetic energy and maximum
B.Maximum kinetic energy and minimum potential energy
C.Minimum kinetic energy and maximum potential energy
D.Minimum kinetic energy and minimum potential energy
E.Average kinetic energy and average potential energy