07.41: For the diagram shown, what is the magnitude of the torque from thaw9 4 v(iqi:vve applied force as mq9vivw:(ia4v easured from the center of the disk?

  98.38: A uniform meter stick of 31pv sj+l8w6vcw. ul vmass 0.20 kg is pivoted at the 40-cm mark. Wherel6v3 u8v wp1vwjcl+.s should 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 m,sucs nzw1s/q4ml 90t ark as shown in the figure. If a pivws140u , z sc/mnsqtl9ot is placed at the 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 0umf;kiupbnbrbd0.1 ws3e :4 at the very edge of a 6.0m long plank which is pivoted about its center of10r :bw bkmdp; ui 04esb.fn3u 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 horizontal position?

  16.20: A uniform 10.0 m long plank is pivoted about its cent1d7 m1srs0j*b- m.g-n xjv gtler 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 clos1ns .xbgj7-*d sgl0mmj1- rv ter to the center of the plank, which one of the following choices best describes the subsequent motion of the plank?

  12.34: A mass m attached to a light 1 ims03n8yrh;qk dxy, string of length L is located at an angle θ below the horizontal as shown in the figure to the right. The mass then is released from rest. Calculated from an 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 gravitationk,iyhy381 dn q smr;0xal force acting on the mass at this instant?

  04.33: A uniform rectan0z,v(lon*np1 ac.0focxdkr 2p4 bj. tgular solid of side length Land width w sits on a frictionless incline of variable angle θ . Assume tha.cn2 f104 bxn,tpczov lpo0d j( kr.a*t there is a very tiny peg preventing the box from sliding down the incline at the point labeled P. At what angle of incline will the box begin to tip over?

  11.49: An inverted “V” in static equilibrium is maaph-x(y3/7g zkpsd6 .bjyx x 0de from two uniform beams each of mass M=12 kg. Each beam of the “V” has the yjps.bp06xx /3 y7(h xg zkda-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 aff5k2r*k c xxszy y(w69zixed to the ground, is in static equilibrium A horizontal rope acts 75% of the way up the rod while a vertical rope acts at the 0far end. The magnit x(5kz yk9c6zx w2y*srude 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 figure?

  16.43: A uniform beam conndw 053 y(az+8jcvtjbhected 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 components of force acting at the pivot o3 j(8wjz5hctd+b a0y vn the beam?