A football player runs for a distance d1 = 8.27 m in 1.4 s, at an angle of θ = 51 degrees to the 50-yard line, then turn

[answerhappygod]

A football player runs for a
distance d1 = 8.27 m
in 1.4 s, at an angle
of θ = 51 degrees to the 50-yard line,
then turns left and runs a
distance d2 = 12.61 m
in 2.18 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.
a) What is the magnitude of the total displacement, in
meters?
b) What angle, in degrees, does the displacement make with the y
axis?
c) What is the magnitude of the average velocity, in
m/s?
d) What angle, in degrees does the average velocity make
with the y axis?