Five hockey pucks are sliding across frictionless ice. The drawing shows a top view of the pucks and the three forces that act on each one. The forces can have different magnitudes (F, 2F, or 3F), and can be applied at different points on the puck. Only one of the five pucks could be in equilibrium. Which one? 3F 3F 2F 2F 2F (1) 2F (2) (3) (4) (5)The drawing shows a top View of a square box lying on a frictionless oor. Three forces, which are drawn to scale, act on the box. Consider an angular acceleration with respect to an axis through the center of the box (perpendicular to the screen). Which one of the fol lowing statements is correct? The pull cord ofa lawnmower engine is wound around a drum of radius 6.00 cm, while the cord is pulled with a force of 75.0 N to start the engine. What magnitude torque does the cord apply to the drum? F=75 N R=6.00 cm Find the torque on a nut due to a wrench with a 0.75 m handle and a 45 N force at an angle of 53 to the handle. Calculate the torque due to the three forces shown about the left end of the bar (the red X). The length of the bar is 4m and F2 acts in the middle of the bar. A woman whose weight is 530 N is poised at the right end of a diving board with length 3.90 m. The board has negligible weight and is supported by a fulcrum |.40 m away from the left end. Find the forces that the bolt and the fulcrum exert on the board. ll Bolt Fulcrum A wrecking ball (weight = 4750 N) is supported by a boom, which may be assumed to be uniform and has a weight of Support 3340 N.As the drawing shows, a support cable Boom cable runs from the top of the boom to 320 the tractor. The angle between the support 48 cable and the horizontal is 320, and the angle between the boom and the horizontal is 48. Find the tension in the support cable.A uniform board is leaning against a smooth vertical wall. The board is at an angle 0 above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.840. Find the smallest value for the angle 0, such that the lower end of the board does not slide along the ground