Question: Two billiard balls undergo an elastic collision as shown in Figure P7.27. Ball 1 is initially traveling along x with a speed of 10 m/s,

Two billiard balls undergo an elastic collision as shown in Figure P7.27. Ball 1 is initially traveling along x with a speed of 10 m/s, and ball 2 is at rest. After the collision, ball 1 moves away with a speed of 4.7 m/s at an angle θ = 60°.?

(a) Find the speed of ball 2 after the collision.?

(b) What angle does the final velocity of ball 2 make with the x axis?

Figure P7.27

? y Ball 1. Ball 1 Ball 2

y Ball 1. Ball 1 Ball 2

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