A ladder leans against a wall at an angle 0 above the horizontal as shown in figure. The ladder is uniform with mass M and length L. Assume that the ladder is at rest due to friction between the ladder and ground. What i the torque exerted by gravity on the ladder about the axis of rotation shown (horizontal and parallel to the wal axis through its base)? (A) zero (B) Mg cos 0 (C) MgL (D) MgL cos 0 (E) M9L sin e F) MgL 5) Mg sin 0 ) One needs the coefficient of friction to answer this problem

The figure shows a jet engine suspended beneath the wing of an airplane. The weight of the engine is 10100 N and acts ash shown in the figure. In flight the engine produces a thrust of 64500 N that is parallel to the ground. The rotational axis in the figure is perpendicular to the plane of the paper. With respect tot he axis, find the magnitude of the torque due to (a) the weight and (b) the thrust.

O Rësources Lx Give Up? Hint The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius r = 0.262 m and mass 4.32 kg, and two thin crossed rods of mass 8.66 kg each.A farmer would like to replace his wheels with uniform disks ta = 0.0588 m thick, made out of a material with a density of 8290 kg per cubic meter. If the new wheel is to have the same moment of inertia about its center as the old wheel about its center, what should the radius of the disk be? ra = about us privacy policy contact us help careers terms of use

F y mg f.Y Frxe f,x Axis The ladder in the picture has a mass of 32 kilograms and a length 3.2 meters. What is the normal force pushing the ladder up from the floor? FN = Assume that the ladder's weight is evenly distributed, so it can be treated as a single force through the middle. If the ladder is at a 60° angle from the ground, what is the torque exerted by the weight (using the floor as the pivot point)?