Abook is pushed off the edge of a table. which is true about the motion of this book? a. it falls straight down because two continuous forces are acting on it. b. its path is unpredictable because there are no continuous forces acting on it. c. its path is harmonic because two instantaneous forces are acting on it. d. it follows a parabolic path because only one continuous force is acting on it.

Your physics assignment is to figure out a way to use electricity to launch a small 6.0-cm-long plastic drink stirrer. you decide that you'll charge the little plastic rod by rubbing it with fur, then hold it near a long, charged wire, as shown in figure p23.56 . when you let go, the electric force of the wire on the plastic rod will shoot it away. suppose you can uniformly charge the plastic stirrer to 10 nc and that the linear charge density of the long wire is 1.0 x10-7 c/m. what is the net electric force on the plastic stirrer if the end closest to the wire is 2.0 cm away?