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A 3.00-kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of θ = 60.0º with the surface. It bounces off with the same speed and angle.

1. Write x and y components of the initial momentum in terms of pi and θ.

2. Write down the magnitudes of the x and y components of the final momentum in terms of p_f and θ.

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