07.41: For the diagram shown, whag jx )g2+c)kas4 6x:f mr*cjsjt is the magnitude of the torque from the applied force as measured from the center of tf4cx:gk) s)aj s6c gj*m r2+xjhe disk?

  98.38: A uniform meter stick ofip x9 4ud0zl7u mass 0.20 kg is pivoted at the 40-cm mark. Where shou4lx9z d uiu07pld one hang a mass of 0.50 kg to balance the stick?

  08.37: A uniform meter stick has a 45.0 g mass placed at the cm 20 -o5)jwn)d/a* t o o/e3pwlingmark as shown in the figure. If a pivot is placed at th3)d*ooi)-n a/ jtewgwnl p5 o/e 42.5cm mark and the meter stick remains horizontal in static equilibrium, what is the mass of the meter stick?

  10.16: Amass M1=40 kg is at the very edge of a 6.0m long plank whicmw-5x9zq m7iq9y 4rab h is pivoted about its center of mass located directly at the center of its length. How far from the center of the plank (x) should the mass kg M2=80 kg be placed so that the plank remains in static equilibrium in a horqbmyq a4-9m zxi9w57r izontal position?

  16.20: A uniform 10.0 m long plank is pi036by rcl7u2vz/s oh ; lawdw0voted about its center of gravity. A mass M1 then is placed at the left edge of the plank and a second mass M2 is placed 1.0 m from the right end. This system is in static equilibrium (shown). If each mass now is moved 2.0 m closer to the center of thes0ld 7vlzwb/y6oar 2h3 ;uw0 c plank, which one of the following choices best describes the subsequent motion of the plank?

  12.34: A mass m attached to a light string of length L is locaf )wuiy-4l ,lpted at an angle θ below the horizontal as shown in the figure to the right. The mass then is released from rest. Calculated from ailu)4 - ply,fwn axis perpendicular to the plane of the page through the pivot, which one of the following choices represents the magnitude of the torque produced by the gravitational force acting on the mass at this instant?

  04.33: A uniform rectangular solid ofe 8:mk/ ai6g6sa x/laa side length Land width w sits on a frictionless incline of variable angle θ . Assume that there is a very tiny peg preventing the box from sliding down the incline at the point labeled P. At what angleak8ilagax/esm /6 a:6 of incline will the box begin to tip over?

  11.49: An inverted “V” in sthk,.)9h g86pbuq vq vratic equilibrium is made from two uniform beams each of mass M=12 kg. Each beam of the vhpbr. kv q6u,)9hq8g “V” has the same length and makes an angle of $30^{\circ}$ with the vertical as shown in the diagram. Which one of the following choices best represents the magnitude of the static friction force acting on the left leg of the “V” from the level ground? The coefficient of static friction between each beam and the ground is $μ_s =0.76$.

  17.42: A long uniform rod, pivoted at one end affixed to the ground, is in stat- ye*q)krc2qdwq )v.sic equilibrium A horizontal rope acts 75% of the way up the rod while a vertical rope acts at the 0far end. The magnitude of each rope’s force is the same as the gravitational force acting on the rod. What is the value of the angle θ in the figurqesw qyk )c*2q.v)-rde?

  16.43: A uniform beam con n1xrt5bw lz/,nected to a wall at the hinge is in static equilibrium as shown. The cable connected to the beam is massless. What are the directions of the horizontal and vertical component1nb 5twz x,/lrs of force acting at the pivot on the beam?