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\fA 4.2 kg 5.5-mlong beam is supported, but not attached to, the two ' Part A posts in [gure 1}. A 23 kg hot.r starts walking along the beam. For help with math skills you may want to review: The Vector Cross How close can he get to the right end ofthe beam without it falling over? M Express your answer with the appropriate units. V View Available Hintls} EB +~ o =3 d = thine Units Part D Choose the correct direction of the cross product C x D. It is opposite to the direction of D O It is zero vecor 45* O Into the page It is opposite to the direction of C O Out of the pagePart A Evaluate the cross products A x B for (Figure 1). Express your answer using two significant figures. A x B Submit Request Answer Part B What is the direction of the cross product A x B? O A x B is zero vector O out of the plane of the image into the plane of the image O it is opposite to the direction of B O it is opposite to the direction of A Submit Request Answer Part C Evaluate the cross products C x D for (Figure 2). Express your answer using two significant figures. IC X D| = Subr Request Answer Figure Part D What is the direction of the cross product C x D? 135 4 O C X D is zero vector O into the plane of the image O out of the plane of the image it is opposite to the direction of D it is opposite to the direction of C