# Problem: On a horizontal frictionless surface block A (mass 4.0 kg) is sliding toward the east with a speed of 6.0 m/s and block B (mass 8.0 kg) is sliding toward the north with a speed of 9.0 m/s. The blocks collide. Immediately after the collision block A is sliding toward the north with speed 7.0 m/s and block B is sliding with a speed of VBf at an angle θ north of east. Calculate the speed VBf and the angle θ.Ans. VBf = Ans. θ =

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On a horizontal frictionless surface block A (mass 4.0 kg) is sliding toward the east with a speed of 6.0 m/s and block B (mass 8.0 kg) is sliding toward the north with a speed of 9.0 m/s. The blocks collide. Immediately after the collision block A is sliding toward the north with speed 7.0 m/s and block B is sliding with a speed of VBf at an angle θ north of east. Calculate the speed VBf and the angle θ.

Ans. VBf

Ans. θ =

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