One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to the tabletop. Two forces, both parallel to the tabletop, are applied to the stick in such a way that the net torquw is zero. One force has a magnitude of 4.00N and is applied perpendicular to the stick at the free end. The other force has a magnitude of 6.00N and acts at a 60.0 degree anglewith respect to the stick. Where along the stick is the 6.00N force applied? Express this distance with respect to the axis of rotation. In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, which can rotate about a verticle axis through its center. Then, two people push perpendicularly on the car, one at each end, as shown in the drawing. The turntable is rotated one-half of a revolution to turn the car around. If the length of the car is9.20m and each person pushes with a 185N force, what is the magnitude of the net torque applied to the car? A uniform plank of length 5.0m and weight 225N rests horizontally on two suports, with 1.1m of the plank hanging over the right support. To what distance x can a person who weighs 450N walk on the overhanging part of the plank before it just begins to tip?
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