physics

A football player runs for a distance d1 = 8.57 m in 1.21 s, at an angle of θ = 62.9 degrees to the 50-yard line, then turns left and runs a distance d2 = 10.58 m in 1.59 s, in a direction perpendicular to the 50-yard line. The diagram shows these two displacements relative to an x-y coordinate system, where the x axis is parallel to the 50-yard line, and the y axis is perpendicular to the 50-yard line.

What is the magnitude of the average velocity, in m/s?
What angle, in degrees does the average velocity make with the y axis? (Note that the angle θ was given as measured from the x axis rather than the y axis.)

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