(III) Billiard balls A and B, of equal mass, move at right angles and meet at the origin of an xy coordinate system as shown in Fig. 7–36. Initially ball A is moving along the y axis at +2.0 m/s, and ball B is moving to the right along the x axis with speed +3.7 m/s. After the collision (assumed elastic), ball B is moving along the positive y axis (Fig. 7–36) with velocity V'g. What is the final direc- tion of ball A, and what +y are the speeds of the two balls? 'B B B) +x FIGURE 7-36 Problem 46. в 3 3.7 m/s (Ball A after the collision is [VA = 2.0 m/s (A not shown.)

(III) Billiard balls A and B, of equal mass, move at right angles and meet at the origin of an xy coordinate system as shown in Fig. 7–36. Initially ball A is moving along the y axis at +2.0 m/s, and ball B is moving to the right along the x axis with speed +3.7 m/s. After the collision (assumed elastic), ball B is moving along the positive y axis (Fig. 7–36) with velocity V'g. What is the final direc- tion of ball A, and what +y are the speeds of the two balls? 'B B B) +x FIGURE 7-36 Problem 46. в 3 3.7 m/s (Ball A after the collision is [VA = 2.0 m/s (A not shown.)