A bicycle wheel is at rest against a curb. if the wheel has a radius R, and a mass M and is at rest against a curb of height h=.14R, determine the minimum horizontal force in terms of M and g that must be applied to the axle to make the wheel start to rise up over the step

A  painter needs to climb d=1.2 m up a ladder (measured along its length from the point where the ladder contacting the ground), without the ladder slipping. The uniform ladder is 45 m long and weighs 328.03 N. It rests with one end on the ground and the other end against a perfectly smooth vertical wall. The ladder rises at an angle of theta=48.03 degrees above the horizontal floor. If the friction coefficient of the floor is 0.24. What is  the weight of the painter? Use g = 10 m/s2 if you need to .

A lamina V of uniform mass density and total mass M kilograms occupies the region between y = l - x 2 and the x-axis (with distance measured in meters). Calculate the rotational kinetic energy if V rotates with angular velocity w = 4 radians per second about: (a) the x-axis. (b) the z-axis.

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