A Football Kicker Is Attempting a Field Goal From $44 \mathrm {~m}$

Multiple Choice

A football kicker is attempting a field goal from $44 \mathrm {~m}$ out.The ball is kicked and just clears the lower bar with a time of flight of $2.9 \mathrm {~s}$ If the angle of the kick was 45°,what was the initial speed of the ball,assuming no effects of air?

A) 21.5 m/s
B) 19.7 m/s
C) 2.2 m/s
D) 39 m/s