07.41: For the diagram shown, what is the magnitude of the torque from the pl2v 24yoj;e-a(vtj rapplied force as measured from t2 y 2pe(tvjarl-; vjo4he center of the disk?

  98.38: A uniform meter stick of mass 0.20 kg is pivoted at the 40-cm mark. Wa993wxj 2 esam bk4q5bhere should one hang a mass of 0.50 kg to balance the2a w se4kmbjb93qa9x5 stick?

  08.37: A uniform meter stick has a 45.0 g mass plx,.s4elohd3xkoq)cn tz 1k2 9 aced at the cm 20 mark as shown in the figure. If a p e3x x)ko12c,d4 zs9lkhqn.to ivot 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 at the very edge of a 6.0m long pla 6mr; u8mr3 7:tgmircqwy06m tnk which is pivoted about its center of mass located directly at the center of its len:6yurcq; 0mgmiw mrt867 m t3rgth. 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 cente0xe2p72vu0 .l5 h3kfbda rrgn30cav ir 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 the plank, which one of the following chona vevi0b30 5p2d27x 0r.l3rfkcgauh ices best describes the subsequent motion of the plank?

  12.34: A mass m attached bbh,xsjjzlt xy6/h m208a( m: to a light 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 pjz j/ty (ba,hhsm b 6lxx02:8mroduced by the gravitational force acting on the mass at this instant?

  04.33: A uniform rec7zy- 7jv0vs uttangular solid of 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 angle of incl uvsy0t7 7jv-zine will the box begin to tip over?

  11.49: An inverted “V” in statiefmqpj84yb c63 +//3nf nbxad67ppbs q6in +vc equilibrium is made from two uniform beams each of mass M=12 kg. Each beam of the “V” has the samesadv y/ cbnqi3j /+6fb+3p67mn84np q6fxp be 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 cc .9n7cu 1 ex;au*ufhone end affixed 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 magnitude of each rope’s force is the samunf.chx1*9 c 7uac;eu e as the gravitational force acting on the rod. What is the value of the angle θ in the figure?

  16.43: A uniform beam connected to a wall at the hinge is in static rig:;llf,wt2 9edvj /equilibrium as sti9d2rl j e/;,w:fl gvhown. The cable connected to the beam is massless. What are the directions of the horizontal and vertical components of force acting at the pivot on the beam?